使用entitiy

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using System.Data.SqlClient;

namespace SQL
{
    public class DBParse
    {
        /// <summary>
        /// 獲取DB中所有的表格
        /// </summary>
        /// <returns></returns>
        public List<TableEntity> GetAllTable()
        {
            string sql = "SELECT Name FROM SysObjects Where XType='U' ORDER BY Name";
            DataTable dt = DbHelperSQL.Query(sql).Tables[0];
            List<TableEntity> list = new List<TableEntity>();
            if (dt != null && dt.Rows.Count > 0)
            {
                foreach (DataRow dr in dt.Rows)
                {
                    TableEntity entity = new TableEntity() { TableName = dr["Name"].ToString() };
                    list.Add(entity);
                }
            }

            return list;
        }

        public List<TableInfoEntity> GetTableInfo(string tablename)
        {
            string strProc = "sp_columns";
            SqlParameter[] parameters = {
                    new SqlParameter("@table_name", SqlDbType.VarChar,50)
                                        };
            parameters[0].Value = tablename;
            DataTable dt = DbHelperSQL.RunProcedure(strProc,parameters,tablename).Tables[0];
            List<TableInfoEntity> list = new List<TableInfoEntity>();
            List<TablePKEntity> list_PK = GetTablePK(tablename);
            string strPK = "";
            string strpk_name = "";
            foreach (TablePKEntity pk in list_PK)
            {
                strPK += pk.PK_ColumnName + ",";
            }
            if (list_PK != null && list_PK.Count > 0)
            {
                if (!string.IsNullOrWhiteSpace(list_PK[0].PK_Name))
                {
                    strpk_name = list_PK[0].PK_Name;
                }
            }
            strPK = strPK.TrimEnd(',');
            if (dt != null && dt.Rows.Count > 0)
            {
                foreach (DataRow dr in dt.Rows)
                {
                    TableInfoEntity entity = new TableInfoEntity() ;
                    entity.TableName = dr["TABLE_NAME"].ToString().Trim().Replace("\t", "");
                    entity.ColumnName = dr["COLUMN_NAME"].ToString().Trim().Replace("\t", "");
                    entity.TypeName = dr["TYPE_NAME"].ToString();
                    entity.Precision = Convert.ToInt32(dr["PRECISION"].ToString());
                    entity.SCALE = dr["SCALE"] == System.DBNull.Value ? 0 : Convert.ToInt32(dr["SCALE"].ToString());
                    entity.Nullable = dr["NULLABLE"].ToString().Trim() == "0" ? false : true;
                    entity.IsIdentity = dr["TYPE_NAME"].ToString().Contains("identity") ? true : false;
                    entity.IsPK = list_PK.Where(q => q.PK_ColumnName == dr["COLUMN_NAME"].ToString()).Count() > 0 ? true : false;
                    entity.PKColumn = strPK;
                    entity.PK_Name = strpk_name.Replace(" ", "").Replace(" ", "").Replace(" ", "").Replace(" ", "").Replace("\t","").Replace(".","");
                    list.Add(entity);
                }
            }

            return list;
        }

        /// <summary>
        /// 獲取表格的主鍵
        /// </summary>
        /// <param name="tablename">表格名稱</param>
        /// <returns></returns>
        public List<TablePKEntity> GetTablePK(string tablename)
        {
            string strProc = "sp_pkeys";
            SqlParameter[] parameters = {
                    new SqlParameter("@table_name", SqlDbType.VarChar,50)
                                        };
            parameters[0].Value = tablename;
            DataTable dt = DbHelperSQL.RunProcedure(strProc, parameters, tablename).Tables[0];
            List<TablePKEntity> list = new List<TablePKEntity>();
            if (dt != null && dt.Rows.Count > 0)
            {
                foreach (DataRow dr in dt.Rows)
                {
                    TablePKEntity entity = new TablePKEntity();
                    entity.TableName = dr["TABLE_NAME"].ToString().Trim().Replace("\t","");
                    entity.PK_ColumnName = dr["COLUMN_NAME"].ToString().Trim().Replace("\t", "");
                    entity.PK_Name = dr["PK_NAME"].ToString();
                    list.Add(entity);
                }
            }
            return list;
        }

        public DataTable GetTableData(string querySql)
        {
            DataTable dt = DbHelperSQL.Query(querySql).Tables[0];
            return dt;
        }

        public int ExcuteSql(List<string> sql)
        {
            return DbHelperSQL.ExecuteSqlTran(sql);
        }
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data.SQLite;
using System.IO;
using System.Data;

namespace SQL2Sqlite
{
    public class BaseHelper
    {
        //日志文件生命周期的时间标记
        //private static DateTime TimeSign;
        public Dictionary<string, string> dicSqlInsert = new Dictionary<string, string>();
        public Dictionary<string, string> dicSqlQuery = new Dictionary<string, string>();
        private string GetDBName()
        {
            DateTime now = DateTime.Now;

            string name = "FB_Proposal" + now.ToString("yyyyMMdd") + ".db";
            if (!File.Exists(name))
            {
                //創建DB
                createNewDatabase(name);
                //創建Table
                //CreateTable(name);
            }
            return name;
        }
        //创建一个空的数据库
        private void createNewDatabase(string name)
        { 
           SQLiteConnection.CreateFile(name);
        }
        private void CreateTable(string name)
        {
            string sql = "create table YouKeyBorad (addtime INTEGER, keyvalue varchar(10));create table YouScreen (addtime INTEGER, screenimg TEXT)";
            SQLiteConnection conn = new SQLiteConnection(string.Format("Data Source={0};Version=3;UseUTF8Encoding=True;", name));
            SQLiteCommand command = new SQLiteCommand(sql, conn);
            conn.Open();
            command.ExecuteNonQuery();
            conn.Close();
        }
        public SQLiteConnection Connect()
        {
            SQLiteConnection m_dbConnection = new SQLiteConnection(string.Format("Data Source={0};Version=3;UseUTF8Encoding=True;", GetDBName()));
            return m_dbConnection;
        }

        public  bool CreateTable2(string tablename)
        {

            bool retbool = false;
            StringBuilder strSql = new StringBuilder();
            //生成 插入數據的SQl語句
            StringBuilder strSql_insert = new StringBuilder();
            StringBuilder strSql_Query = new StringBuilder();
            try
            {
                strSql.Append(" create table ");
                strSql.Append("[" + tablename.TrimEnd() + "]");
                strSql.Append(" ( ");
                DBParse dbSQL = new DBParse();
                List<TableInfoEntity> list = dbSQL.GetTableInfo(tablename);
                //foreach (TableInfoEntity entity in list)
                string strPK = "";
                string strpk_name = "";
                strSql_insert.AppendFormat(" insert into {0} values(", tablename);
                strSql_Query.Append("select ");
                //拼接創建表的SQL
                for (int i = 0; i < list.Count; i++)
                {
                    TableInfoEntity entity = list[i];
                    #region 拼接創建表 SQL
                    strSql.Append("[" + entity.ColumnName + "]");
                    strSql.Append(" ");
                    strSql.Append(SQLType2SQLiteType.SqlTypeString2SqliteType(entity.TypeName, entity.Precision, entity.SCALE));

                    if (!entity.Nullable)
                    {
                        strSql.Append("  NOT NULL ");
                    }
                    
                    //if (entity.IsIdentity)
                    //{
                    //    strSql.Append(" AUTOINCREMENT ");
                    //}
                    #endregion
                    #region 拼接插入數據的SQL
                    if (entity.TypeName.ToLower().Equals("varchar") || entity.TypeName.ToLower().Equals("ntext")
                     || entity.TypeName.ToLower().Equals("nvarchar") || entity.TypeName.ToLower().Equals("text")
                     || entity.TypeName.ToLower().Equals("char") || entity.TypeName.ToLower().Equals("nchar")
                     || entity.TypeName.ToLower().Equals("bit") || entity.TypeName.ToLower().Equals("datetime")
                     || entity.TypeName.ToLower().Equals("date") || entity.TypeName.ToLower().Equals("time"))
                    {
                        strSql_insert.Append(" '{");
                    }
                    else
                    {
                        strSql_insert.Append(" {");
                    }
                    if (entity.TypeName.Equals("System.DateTime") || entity.TypeName.ToLower().Contains("datetime"))
                    {
                        strSql_insert.Append(i + ":yyyy-MM-dd HH:mm:ss.fff");
                    }
                    else
                    {
                        strSql_insert.Append(i);
                    }
                    //strSql_insert.Append(i);
                    if (entity.TypeName.ToLower().Equals("varchar") || entity.TypeName.ToLower().Equals("ntext")
                     || entity.TypeName.ToLower().Equals("nvarchar") || entity.TypeName.ToLower().Equals("text")
                     || entity.TypeName.ToLower().Equals("char") || entity.TypeName.ToLower().Equals("nchar")
                     || entity.TypeName.ToLower().Equals("bit") || entity.TypeName.ToLower().Equals("datetime")
                     || entity.TypeName.ToLower().Equals("date") || entity.TypeName.ToLower().Equals("time"))
                    {
                        strSql_insert.Append("}'");
                    }
                    else
                    {
                        strSql_insert.Append("}");
                    }
                    #endregion
                    #region 拼接查詢數據的SQL
                    strSql_Query.Append("[" + entity.ColumnName + "]");
                    #endregion
                    if (i < list.Count - 1)
                    {
                        strSql.Append(",");
                        strSql_insert.Append(",");
                        strSql_Query.Append(",");
                    }
                    strPK = entity.PKColumn;
                    strpk_name = entity.PK_Name;
                }
                //給表添加主鍵
                if (strPK != "")
                {
                    if (strpk_name.Trim() == "")
                    {
                        strpk_name = "pk_" + tablename.TrimEnd();
                    }
                    strSql.AppendFormat(" ,constraint {0} primary key ({1}) ", strpk_name, strPK);
                }
                strSql.Append(" ) ");
                strSql_insert.Append(" );");
                strSql_Query.Append(" from " + tablename.TrimEnd());
                SQLiteHelper.ExecuteNonQuery(Connect(), strSql.ToString());
                retbool = true;
                dicSqlInsert.Add(tablename.TrimEnd(), strSql_insert.ToString());
                dicSqlQuery.Add(tablename.TrimEnd(), strSql_Query.ToString());
            }
            catch (Exception ee)
            {
                MyConsole.WriteLine(ee.Message + "----" + strSql.ToString());
                retbool = false;
            }
            return retbool;
        }

        public int ImportData(string querySql,string intoSql)
        {  
            int retInt = 0;
            DBParse dbSQL = new DBParse();
            DataTable dtSqlData = dbSQL.GetTableData(querySql);
            //最後的執行insert的SQL語句
            List<string> listSql = new List<string>();
            if (dtSqlData != null && dtSqlData.Rows.Count > 0)
            {
                for (int i = 0; i < dtSqlData.Rows.Count; i++)
                {
                    try
                    {
                        string sqlTemp = "";
                        object[] args = new object[dtSqlData.Columns.Count];
                        object objtemp = null;
                        bool haveNull = false;
                        for (int j = 0; j < dtSqlData.Columns.Count; j++)
                        {
                            //MyConsole.TransferEncoding(Encoding.Default, Encoding.UTF8, dtSqlData.Rows[i][j].ToString());
                            if (intoSql.Contains("PIA_LOG_MAIN"))
                            {
                                break;
                            }
                            //if (intoSql.Contains("tbNews"))
                            //{
                            //    int x = 0;
                            //}
                            if (dtSqlData.Rows[i][j] == DBNull.Value || dtSqlData.Columns[j].DataType == Type.GetType("System.Byte[]"))
                            {
                                args[j] = "Null";
                                sqlTemp = intoSql.Replace("'{" + j + "}'", "{" + j + "}");
                                haveNull = true;
                            }
                            else if (dtSqlData.Columns[j].DataType == Type.GetType("System.Boolean"))
                            {
                                args[j] = Convert.ToBoolean(dtSqlData.Rows[i][j]) ? 1 : 0; 
                            }
                            else
                            {
                                if (dtSqlData.Rows[i][j].ToString().Contains(@"'"))
                                {
                                    args[j] = dtSqlData.Rows[i][j].ToString().Replace(@"'", @"''");
                                }
                                else
                                {
                                    args[j] = dtSqlData.Rows[i][j];
                                }
                            }
                        }
                        string into_temp = "";
                        if (haveNull)
                        {
                            into_temp = string.Format(sqlTemp, args);
                        }
                        else
                        {
                            into_temp = string.Format(intoSql, args);
                        }
                        //string into_temp = string.Format(intoSql, args);
                        listSql.Add(into_temp.Replace("'Null'","Null"));
                        if (listSql.Count == 500)
                        {
                            int temp = ExecuteSQL(listSql);
                            if (temp == 0)
                            {
                                Logger.Error(listSql.ToString());
                                MyConsole.WriteLine("有500條導入數據的事務出現異常，已放棄：" + intoSql);
                            }
                            retInt += temp;
                            listSql.Clear();
                        }
                    }
                    catch (Exception ex)
                    {
                        MyConsole.WriteLine(ex.Message);
                    }
                }
                if (listSql.Count > 0)
                {
                    //retInt += ExecuteSQL(listSql);
                    int temp = ExecuteSQL(listSql);
                    if (temp == 0)
                    {
                        MyConsole.WriteLine("有部分導入數據的事務出現異常，已放棄：" + intoSql);
                    }
                    retInt += temp;
                }
            }
            return retInt;
        }

        private int ExecuteSQL(List<string> intoSql)
        {
            return SQLiteHelper.ExecuteSqlTran(Connect(),intoSql);
        }

    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using System.Data.SqlClient;

namespace SQL2Sqlite
{
    public class DBParse
    {
        /// <summary>
        /// 獲取DB中所有的表格
        /// </summary>
        /// <returns></returns>
        public List<TableEntity> GetAllTable()
        {
            string sql = "SELECT Name FROM SysObjects Where XType='U' ORDER BY Name";
            DataTable dt = DbHelperSQL.Query(sql).Tables[0];
            List<TableEntity> list = new List<TableEntity>();
            if (dt != null && dt.Rows.Count > 0)
            {
                foreach (DataRow dr in dt.Rows)
                {
                    TableEntity entity = new TableEntity() { TableName = dr["Name"].ToString() };
                    list.Add(entity);
                }
            }

            return list;
        }

        public List<TableInfoEntity> GetTableInfo(string tablename)
        {
            string strProc = "sp_columns";
            SqlParameter[] parameters = {
                    new SqlParameter("@table_name", SqlDbType.VarChar,50)
                                        };
            parameters[0].Value = tablename;
            DataTable dt = DbHelperSQL.RunProcedure(strProc,parameters,tablename).Tables[0];
            List<TableInfoEntity> list = new List<TableInfoEntity>();
            List<TablePKEntity> list_PK = GetTablePK(tablename);
            string strPK = "";
            string strpk_name = "";
            foreach (TablePKEntity pk in list_PK)
            {
                strPK += pk.PK_ColumnName + ",";
            }
            if (list_PK != null && list_PK.Count > 0)
            {
                if (!string.IsNullOrWhiteSpace(list_PK[0].PK_Name))
                {
                    strpk_name = list_PK[0].PK_Name;
                }
            }
            strPK = strPK.TrimEnd(',');
            if (dt != null && dt.Rows.Count > 0)
            {
                foreach (DataRow dr in dt.Rows)
                {
                    TableInfoEntity entity = new TableInfoEntity() ;
                    entity.TableName = dr["TABLE_NAME"].ToString().Trim().Replace("\t", "");
                    entity.ColumnName = dr["COLUMN_NAME"].ToString().Trim().Replace("\t", "");
                    entity.TypeName = dr["TYPE_NAME"].ToString();
                    entity.Precision = Convert.ToInt32(dr["PRECISION"].ToString());
                    entity.SCALE = dr["SCALE"] == System.DBNull.Value ? 0 : Convert.ToInt32(dr["SCALE"].ToString());
                    entity.Nullable = dr["NULLABLE"].ToString().Trim() == "0" ? false : true;
                    entity.IsIdentity = dr["TYPE_NAME"].ToString().Contains("identity") ? true : false;
                    entity.IsPK = list_PK.Where(q => q.PK_ColumnName == dr["COLUMN_NAME"].ToString()).Count() > 0 ? true : false;
                    entity.PKColumn = strPK;
                    entity.PK_Name = strpk_name.Replace(" ", "").Replace(" ", "").Replace(" ", "").Replace(" ", "").Replace("\t","").Replace(".","");
                    list.Add(entity);
                }
            }

            return list;
        }

        /// <summary>
        /// 獲取表格的主鍵
        /// </summary>
        /// <param name="tablename">表格名稱</param>
        /// <returns></returns>
        public List<TablePKEntity> GetTablePK(string tablename)
        {
            string strProc = "sp_pkeys";
            SqlParameter[] parameters = {
                    new SqlParameter("@table_name", SqlDbType.VarChar,50)
                                        };
            parameters[0].Value = tablename;
            DataTable dt = DbHelperSQL.RunProcedure(strProc, parameters, tablename).Tables[0];
            List<TablePKEntity> list = new List<TablePKEntity>();
            if (dt != null && dt.Rows.Count > 0)
            {
                foreach (DataRow dr in dt.Rows)
                {
                    TablePKEntity entity = new TablePKEntity();
                    entity.TableName = dr["TABLE_NAME"].ToString().Trim().Replace("\t","");
                    entity.PK_ColumnName = dr["COLUMN_NAME"].ToString().Trim().Replace("\t", "");
                    entity.PK_Name = dr["PK_NAME"].ToString();
                    list.Add(entity);
                }
            }
            return list;
        }

        public DataTable GetTableData(string querySql)
        {
            DataTable dt = DbHelperSQL.Query(querySql).Tables[0];
            return dt;
        }

        public int ExcuteSql(List<string> sql)
        {
            return DbHelperSQL.ExecuteSqlTran(sql);
        }
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace SQL2Sqlite
{
    public class Entity
    {

    }

    /// <summary>
    /// 數據庫內所有的表格
    /// </summary>
    public class TableEntity
    {
        public string TableName { get; set; }
    }

    /// <summary>
    /// 表格對象
    /// </summary>
    public class TableInfoEntity
    {
        /// <summary>
        /// 表名
        /// </summary>
        public string TableName { get; set; }
        /// <summary>
        /// 列名
        /// </summary>
        public string ColumnName { get; set; }
        /// <summary>
        /// 列類型名
        /// </summary>
        public string TypeName { get; set; }
        /// <summary>
        /// 列類型的長度
        /// </summary>
        public int Precision { get; set; }

        /// <summary>
        /// 列類型的小數位
        /// </summary>
        public int SCALE { get; set; }

        /// <summary>
        /// 列是否可以為空 true可以為空，false不能為空
        /// </summary>
        public bool Nullable { get; set; }

        /// <summary>
        /// 是否自動增長 true為自動增長
        /// </summary>
        public bool IsIdentity { get; set; }

        /// <summary>
        /// 是否為主鍵  true為主鍵
        /// </summary>
        public bool IsPK { get; set; }

        /// <summary>
        /// 所有的主鍵列，逗號隔開
        /// </summary>
        public string PKColumn { get; set; }
        /// <summary>
        /// 主鍵名
        /// </summary>
        public string PK_Name { get; set; }

    }

    /// <summary>
    /// 表格主鍵名
    /// </summary>
    public class TablePKEntity
    {
        /// <summary>
        /// 表名
        /// </summary>
        public string TableName { get; set; }
        /// <summary>
        /// 主鍵列名
        /// </summary>
        public string PK_ColumnName { get; set; }

        /// <summary>
        /// 主鍵名
        /// </summary>
        public string PK_Name { get; set; }
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data.SQLite;
using System.IO;
using System.Data;

namespace SQL2Sqlite
{
    public class BaseHelper
    {
        //日志文件生命周期的时间标记
        //private static DateTime TimeSign;
        public Dictionary<string, string> dicSqlInsert = new Dictionary<string, string>();
        public Dictionary<string, string> dicSqlQuery = new Dictionary<string, string>();
        private string GetDBName()
        {
            DateTime now = DateTime.Now;

            string name = "FB_Proposal" + now.ToString("yyyyMMdd") + ".db";
            if (!File.Exists(name))
            {
                //創建DB
                createNewDatabase(name);
                //創建Table
                //CreateTable(name);
            }
            return name;
        }
        //创建一个空的数据库
        private void createNewDatabase(string name)
        { 
           SQLiteConnection.CreateFile(name);
        }
        private void CreateTable(string name)
        {
            string sql = "create table YouKeyBorad (addtime INTEGER, keyvalue varchar(10));create table YouScreen (addtime INTEGER, screenimg TEXT)";
            SQLiteConnection conn = new SQLiteConnection(string.Format("Data Source={0};Version=3;UseUTF8Encoding=True;", name));
            SQLiteCommand command = new SQLiteCommand(sql, conn);
            conn.Open();
            command.ExecuteNonQuery();
            conn.Close();
        }
        public SQLiteConnection Connect()
        {
            SQLiteConnection m_dbConnection = new SQLiteConnection(string.Format("Data Source={0};Version=3;UseUTF8Encoding=True;", GetDBName()));
            return m_dbConnection;
        }

        public  bool CreateTable2(string tablename)
        {

            bool retbool = false;
            StringBuilder strSql = new StringBuilder();
            //生成 插入數據的SQl語句
            StringBuilder strSql_insert = new StringBuilder();
            StringBuilder strSql_Query = new StringBuilder();
            try
            {
                strSql.Append(" create table ");
                strSql.Append("[" + tablename.TrimEnd() + "]");
                strSql.Append(" ( ");
                DBParse dbSQL = new DBParse();
                List<TableInfoEntity> list = dbSQL.GetTableInfo(tablename);
                //foreach (TableInfoEntity entity in list)
                string strPK = "";
                string strpk_name = "";
                strSql_insert.AppendFormat(" insert into {0} values(", tablename);
                strSql_Query.Append("select ");
                //拼接創建表的SQL
                for (int i = 0; i < list.Count; i++)
                {
                    TableInfoEntity entity = list[i];
                    #region 拼接創建表 SQL
                    strSql.Append("[" + entity.ColumnName + "]");
                    strSql.Append(" ");
                    strSql.Append(SQLType2SQLiteType.SqlTypeString2SqliteType(entity.TypeName, entity.Precision, entity.SCALE));

                    if (!entity.Nullable)
                    {
                        strSql.Append("  NOT NULL ");
                    }
                    
                    //if (entity.IsIdentity)
                    //{
                    //    strSql.Append(" AUTOINCREMENT ");
                    //}
                    #endregion
                    #region 拼接插入數據的SQL
                    if (entity.TypeName.ToLower().Equals("varchar") || entity.TypeName.ToLower().Equals("ntext")
                     || entity.TypeName.ToLower().Equals("nvarchar") || entity.TypeName.ToLower().Equals("text")
                     || entity.TypeName.ToLower().Equals("char") || entity.TypeName.ToLower().Equals("nchar")
                     || entity.TypeName.ToLower().Equals("bit") || entity.TypeName.ToLower().Equals("datetime")
                     || entity.TypeName.ToLower().Equals("date") || entity.TypeName.ToLower().Equals("time"))
                    {
                        strSql_insert.Append(" '{");
                    }
                    else
                    {
                        strSql_insert.Append(" {");
                    }
                    if (entity.TypeName.Equals("System.DateTime") || entity.TypeName.ToLower().Contains("datetime"))
                    {
                        strSql_insert.Append(i + ":yyyy-MM-dd HH:mm:ss.fff");
                    }
                    else
                    {
                        strSql_insert.Append(i);
                    }
                    //strSql_insert.Append(i);
                    if (entity.TypeName.ToLower().Equals("varchar") || entity.TypeName.ToLower().Equals("ntext")
                     || entity.TypeName.ToLower().Equals("nvarchar") || entity.TypeName.ToLower().Equals("text")
                     || entity.TypeName.ToLower().Equals("char") || entity.TypeName.ToLower().Equals("nchar")
                     || entity.TypeName.ToLower().Equals("bit") || entity.TypeName.ToLower().Equals("datetime")
                     || entity.TypeName.ToLower().Equals("date") || entity.TypeName.ToLower().Equals("time"))
                    {
                        strSql_insert.Append("}'");
                    }
                    else
                    {
                        strSql_insert.Append("}");
                    }
                    #endregion
                    #region 拼接查詢數據的SQL
                    strSql_Query.Append("[" + entity.ColumnName + "]");
                    #endregion
                    if (i < list.Count - 1)
                    {
                        strSql.Append(",");
                        strSql_insert.Append(",");
                        strSql_Query.Append(",");
                    }
                    strPK = entity.PKColumn;
                    strpk_name = entity.PK_Name;
                }
                //給表添加主鍵
                if (strPK != "")
                {
                    if (strpk_name.Trim() == "")
                    {
                        strpk_name = "pk_" + tablename.TrimEnd();
                    }
                    strSql.AppendFormat(" ,constraint {0} primary key ({1}) ", strpk_name, strPK);
                }
                strSql.Append(" ) ");
                strSql_insert.Append(" );");
                strSql_Query.Append(" from " + tablename.TrimEnd());
                SQLiteHelper.ExecuteNonQuery(Connect(), strSql.ToString());
                retbool = true;
                dicSqlInsert.Add(tablename.TrimEnd(), strSql_insert.ToString());
                dicSqlQuery.Add(tablename.TrimEnd(), strSql_Query.ToString());
            }
            catch (Exception ee)
            {
                MyConsole.WriteLine(ee.Message + "----" + strSql.ToString());
                retbool = false;
            }
            return retbool;
        }

        public int ImportData(string querySql,string intoSql)
        {  
            int retInt = 0;
            DBParse dbSQL = new DBParse();
            DataTable dtSqlData = dbSQL.GetTableData(querySql);
            //最後的執行insert的SQL語句
            List<string> listSql = new List<string>();
            if (dtSqlData != null && dtSqlData.Rows.Count > 0)
            {
                for (int i = 0; i < dtSqlData.Rows.Count; i++)
                {
                    try
                    {
                        string sqlTemp = "";
                        object[] args = new object[dtSqlData.Columns.Count];
                        object objtemp = null;
                        bool haveNull = false;
                        for (int j = 0; j < dtSqlData.Columns.Count; j++)
                        {
                            //MyConsole.TransferEncoding(Encoding.Default, Encoding.UTF8, dtSqlData.Rows[i][j].ToString());
                            if (intoSql.Contains("PIA_LOG_MAIN"))
                            {
                                break;
                            }
                            //if (intoSql.Contains("tbNews"))
                            //{
                            //    int x = 0;
                            //}
                            if (dtSqlData.Rows[i][j] == DBNull.Value || dtSqlData.Columns[j].DataType == Type.GetType("System.Byte[]"))
                            {
                                args[j] = "Null";
                                sqlTemp = intoSql.Replace("'{" + j + "}'", "{" + j + "}");
                                haveNull = true;
                            }
                            else if (dtSqlData.Columns[j].DataType == Type.GetType("System.Boolean"))
                            {
                                args[j] = Convert.ToBoolean(dtSqlData.Rows[i][j]) ? 1 : 0; 
                            }
                            else
                            {
                                if (dtSqlData.Rows[i][j].ToString().Contains(@"'"))
                                {
                                    args[j] = dtSqlData.Rows[i][j].ToString().Replace(@"'", @"''");
                                }
                                else
                                {
                                    args[j] = dtSqlData.Rows[i][j];
                                }
                            }
                        }
                        string into_temp = "";
                        if (haveNull)
                        {
                            into_temp = string.Format(sqlTemp, args);
                        }
                        else
                        {
                            into_temp = string.Format(intoSql, args);
                        }
                        //string into_temp = string.Format(intoSql, args);
                        listSql.Add(into_temp.Replace("'Null'","Null"));
                        if (listSql.Count == 500)
                        {
                            int temp = ExecuteSQL(listSql);
                            if (temp == 0)
                            {
                                Logger.Error(listSql.ToString());
                                MyConsole.WriteLine("有500條導入數據的事務出現異常，已放棄：" + intoSql);
                            }
                            retInt += temp;
                            listSql.Clear();
                        }
                    }
                    catch (Exception ex)
                    {
                        MyConsole.WriteLine(ex.Message);
                    }
                }
                if (listSql.Count > 0)
                {
                    //retInt += ExecuteSQL(listSql);
                    int temp = ExecuteSQL(listSql);
                    if (temp == 0)
                    {
                        MyConsole.WriteLine("有部分導入數據的事務出現異常，已放棄：" + intoSql);
                    }
                    retInt += temp;
                }
            }
            return retInt;
        }

        private int ExecuteSQL(List<string> intoSql)
        {
            return SQLiteHelper.ExecuteSqlTran(Connect(),intoSql);
        }

    }
}

得到SQL插入语句

 

using System;
using System.Collections;
using System.Collections.Specialized;
using System.Data;
using System.Data.SqlClient;
using System.Configuration;
using System.Data.Common;
using System.Collections.Generic;
namespace SQL2Sqlite
{
    /// <summary>
    /// 数据访问抽象基础类
    /// Copyright (C) Maticsoft
    /// </summary>
    public abstract class DbHelperSQL
    {
        //数据库连接字符串(web.config来配置)，多数据库可使用DbHelperSQLP来实现.
        private static string connectionString = ConfigurationManager.AppSettings["DefaultConnection"].ToString();//PubConstant.ConnectionString;             

        public static string ConnectionString
        {
            get { return connectionString;/*DbHelperSQL.connectionString;*/ }
            //set { DbHelperSQL.connectionString = value; }
        }
        public DbHelperSQL()
        {
        }

        

        #region 公用方法

        

        /// <summary>
        /// 判断是否存在某表的某个字段
        /// </summary>
        /// <param name="tableName">表名称</param>
        /// <param name="columnName">列名称</param>
        /// <returns>是否存在</returns>
        public static bool ColumnExists(string tableName, string columnName)
        {
            string sql = "select count(1) from syscolumns where [id]=object_id('" + tableName + "') and [name]='" + columnName + "'";
            object res = GetSingle(sql);
            if (res == null)
            {
                return false;
            }
            return Convert.ToInt32(res) > 0;
        }
        public static int GetMaxID(string FieldName, string TableName)
        {
            string strsql = "select max(" + FieldName + ")+1 from " + TableName;
            object obj = GetSingle(strsql);
            if (obj == null)
            {
                return 1;
            }
            else
            {
                return int.Parse(obj.ToString());
            }
        }
        public static bool Exists(string strSql)
        {
            object obj = GetSingle(strSql);
            int cmdresult;
            if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
            {
                cmdresult = 0;
            }
            else
            {
                cmdresult = int.Parse(obj.ToString());
            }
            if (cmdresult == 0)
            {
                return false;
            }
            else
            {
                return true;
            }
        }
        /// <summary>
        /// 表是否存在
        /// </summary>
        /// <param name="TableName"></param>
        /// <returns></returns>
        public static bool TabExists(string TableName)
        {
            string strsql = "select count(*) from sysobjects where id = object_id(N'[" + TableName + "]') and OBJECTPROPERTY(id, N'IsUserTable') = 1";
            //string strsql = "SELECT count(*) FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[" + TableName + "]') AND type in (N'U')";
            object obj = GetSingle(strsql);
            int cmdresult;
            if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
            {
                cmdresult = 0;
            }
            else
            {
                cmdresult = int.Parse(obj.ToString());
            }
            if (cmdresult == 0)
            {
                return false;
            }
            else
            {
                return true;
            }
        }
        public static bool Exists(string strSql, params SqlParameter[] cmdParms)
        {
            object obj = GetSingle(strSql, cmdParms);
            int cmdresult;
            if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
            {
                cmdresult = 0;
            }
            else
            {
                cmdresult = int.Parse(obj.ToString());
            }
            if (cmdresult == 0)
            {
                return false;
            }
            else
            {
                return true;
            }
        }
        #endregion

        #region  执行简单SQL语句

        /// <summary>
        /// 执行SQL语句，返回影响的记录数
        /// </summary>
        /// <param name="SQLString">SQL语句</param>
        /// <returns>影响的记录数</returns>
        public static int ExecuteSql(string SQLString)
        {
            using (SqlConnection connection = new SqlConnection(connectionString))
            {
                using (SqlCommand cmd = new SqlCommand(SQLString, connection))
                {
                    try
                    {
                        connection.Open();
                        int rows = cmd.ExecuteNonQuery();
                        return rows;
                    }
                    catch (System.Data.SqlClient.SqlException e)
                    {
                        connection.Close();
                        throw e;
                    }
                }
            }
        }

        public static int ExecuteSqlByTime(string SQLString, int Times)
        {
            using (SqlConnection connection = new SqlConnection(connectionString))
            {
                using (SqlCommand cmd = new SqlCommand(SQLString, connection))
                {
                    try
                    {
                        connection.Open();
                        cmd.CommandTimeout = Times;
                        int rows = cmd.ExecuteNonQuery();
                        return rows;
                    }
                    catch (System.Data.SqlClient.SqlException e)
                    {
                        connection.Close();
                        throw e;
                    }
                }
            }
        }
      
             
        /// <summary>
        /// 执行多条SQL语句，实现数据库事务。
        /// </summary>
        /// <param name="SQLStringList">多条SQL语句</param>        
        public static int ExecuteSqlTran(List<String> SQLStringList)
        {
            using (SqlConnection conn = new SqlConnection(connectionString))
            {
                conn.Open();
                SqlCommand cmd = new SqlCommand();
                cmd.Connection = conn;
                SqlTransaction tx = conn.BeginTransaction();
                cmd.Transaction = tx;
                try
                {
                    int count = 0;
                    for (int n = 0; n < SQLStringList.Count; n++)
                    {
                        string strsql = SQLStringList[n];
                        if (strsql.Trim().Length > 1)
                        {
                            cmd.CommandText = strsql;
                            count += cmd.ExecuteNonQuery();
                        }
                    }
                    tx.Commit();
                    return count;
                }
                catch
                {
                    tx.Rollback();
                    return 0;
                }
            }
        }
        /// <summary>
        /// 执行带一个存储过程参数的的SQL语句。
        /// </summary>
        /// <param name="SQLString">SQL语句</param>
        /// <param name="content">参数内容,比如一个字段是格式复杂的文章，有特殊符号，可以通过这个方式添加</param>
        /// <returns>影响的记录数</returns>
        public static int ExecuteSql(string SQLString, string content)
        {
            using (SqlConnection connection = new SqlConnection(connectionString))
            {
                SqlCommand cmd = new SqlCommand(SQLString, connection);
                System.Data.SqlClient.SqlParameter myParameter = new System.Data.SqlClient.SqlParameter("@content", SqlDbType.NText);
                myParameter.Value = content;
                cmd.Parameters.Add(myParameter);
                try
                {
                    connection.Open();
                    int rows = cmd.ExecuteNonQuery();
                    return rows;
                }
                catch (System.Data.SqlClient.SqlException e)
                {
                    throw e;
                }
                finally
                {
                    cmd.Dispose();
                    connection.Close();
                }
            }
        }
        /// <summary>
        /// 执行带一个存储过程参数的的SQL语句。
        /// </summary>
        /// <param name="SQLString">SQL语句</param>
        /// <param name="content">参数内容,比如一个字段是格式复杂的文章，有特殊符号，可以通过这个方式添加</param>
        /// <returns>影响的记录数</returns>
        public static object ExecuteSqlGet(string SQLString, string content)
        {
            using (SqlConnection connection = new SqlConnection(connectionString))
            {
                SqlCommand cmd = new SqlCommand(SQLString, connection);
                System.Data.SqlClient.SqlParameter myParameter = new System.Data.SqlClient.SqlParameter("@content", SqlDbType.NText);
                myParameter.Value = content;
                cmd.Parameters.Add(myParameter);
                try
                {
                    connection.Open();
                    object obj = cmd.ExecuteScalar();
                    if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
                    {
                        return null;
                    }
                    else
                    {
                        return obj;
                    }
                }
                catch (System.Data.SqlClient.SqlException e)
                {
                    throw e;
                }
                finally
                {
                    cmd.Dispose();
                    connection.Close();
                }
            }
        }
        /// <summary>
        /// 向数据库里插入图像格式的字段(和上面情况类似的另一种实例)
        /// </summary>
        /// <param name="strSQL">SQL语句</param>
        /// <param name="fs">图像字节,数据库的字段类型为image的情况</param>
        /// <returns>影响的记录数</returns>
        public static int ExecuteSqlInsertImg(string strSQL, byte[] fs)
        {
            using (SqlConnection connection = new SqlConnection(connectionString))
            {
                SqlCommand cmd = new SqlCommand(strSQL, connection);
                System.Data.SqlClient.SqlParameter myParameter = new System.Data.SqlClient.SqlParameter("@fs", SqlDbType.Image);
                myParameter.Value = fs;
                cmd.Parameters.Add(myParameter);
                try
                {
                    connection.Open();
                    int rows = cmd.ExecuteNonQuery();
                    return rows;
                }
                catch (System.Data.SqlClient.SqlException e)
                {
                    throw e;
                }
                finally
                {
                    cmd.Dispose();
                    connection.Close();
                }
            }
        }

        /// <summary>
        /// 执行一条计算查询结果语句，返回查询结果（object）。
        /// </summary>
        /// <param name="SQLString">计算查询结果语句</param>
        /// <returns>查询结果（object）</returns>
        public static object GetSingle(string SQLString)
        {
            using (SqlConnection connection = new SqlConnection(connectionString))
            {
                using (SqlCommand cmd = new SqlCommand(SQLString, connection))
                {
                    try
                    {
                        connection.Open();
                        object obj = cmd.ExecuteScalar();
                        if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
                        {
                            return null;
                        }
                        else
                        {
                            return obj;
                        }
                    }
                    catch (System.Data.SqlClient.SqlException e)
                    {
                        connection.Close();
                        throw e;
                    }
                }
            }
        }
        public static object GetSingle(string SQLString, int Times)
        {
            using (SqlConnection connection = new SqlConnection(connectionString))
            {
                using (SqlCommand cmd = new SqlCommand(SQLString, connection))
                {
                    try
                    {
                        connection.Open();
                        cmd.CommandTimeout = Times;
                        object obj = cmd.ExecuteScalar();
                        if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
                        {
                            return null;
                        }
                        else
                        {
                            return obj;
                        }
                    }
                    catch (System.Data.SqlClient.SqlException e)
                    {
                        connection.Close();
                        throw e;
                    }
                }
            }
        }
        /// <summary>
        /// 执行查询语句，返回SqlDataReader ( 注意：调用该方法后，一定要对SqlDataReader进行Close )
        /// </summary>
        /// <param name="strSQL">查询语句</param>
        /// <returns>SqlDataReader</returns>
        public static SqlDataReader ExecuteReader(string strSQL)
        {
            SqlConnection connection = new SqlConnection(connectionString);
            SqlCommand cmd = new SqlCommand(strSQL, connection);
            try
            {
                connection.Open();
                SqlDataReader myReader = cmd.ExecuteReader(CommandBehavior.CloseConnection);
                return myReader;
            }
            catch (System.Data.SqlClient.SqlException e)
            {
                throw e;
            }   

        }
        /// <summary>
        /// 执行查询语句，返回DataSet
        /// </summary>
        /// <param name="SQLString">查询语句</param>
        /// <returns>DataSet</returns>
        public static DataSet Query(string SQLString)
        {
            using (SqlConnection connection = new SqlConnection(connectionString))
            {
                DataSet ds = new DataSet();
                try
                {
                    connection.Open();
                    SqlDataAdapter command = new SqlDataAdapter(SQLString, connection);
                    command.Fill(ds, "ds");
                }
                catch (System.Data.SqlClient.SqlException ex)
                {
                    throw new Exception(ex.Message);
                }
                return ds;
            }
        }
        public static DataSet Query(string SQLString, int Times)
        {
            using (SqlConnection connection = new SqlConnection(connectionString))
            {
                DataSet ds = new DataSet();
                try
                {
                    connection.Open();
                    SqlDataAdapter command = new SqlDataAdapter(SQLString, connection);
                    command.SelectCommand.CommandTimeout = Times;
                    command.Fill(ds, "ds");
                }
                catch (System.Data.SqlClient.SqlException ex)
                {
                    throw new Exception(ex.Message);
                }
                return ds;
            }
        }



        #endregion

        #region 执行带参数的SQL语句

        /// <summary>
        /// 执行SQL语句，返回影响的记录数
        /// </summary>
        /// <param name="SQLString">SQL语句</param>
        /// <returns>影响的记录数</returns>
        public static int ExecuteSql(string SQLString, params SqlParameter[] cmdParms)
        {
            using (SqlConnection connection = new SqlConnection(connectionString))
            {
                using (SqlCommand cmd = new SqlCommand())
                {
                    try
                    {
                        PrepareCommand(cmd, connection, null, SQLString, cmdParms);
                        int rows = cmd.ExecuteNonQuery();
                        cmd.Parameters.Clear();
                        return rows;
                    }
                    catch (System.Data.SqlClient.SqlException e)
                    {
                        throw e;
                    }
                }
            }
        }


        /// <summary>
        /// 执行多条SQL语句，实现数据库事务。
        /// </summary>
        /// <param name="SQLStringList">SQL语句的哈希表（key为sql语句，value是该语句的SqlParameter[]）</param>
        public static void ExecuteSqlTran(Hashtable SQLStringList)
        {
            using (SqlConnection conn = new SqlConnection(connectionString))
            {
                conn.Open();
                using (SqlTransaction trans = conn.BeginTransaction())
                {
                    SqlCommand cmd = new SqlCommand();
                    try
                    {
                        //循环
                        foreach (DictionaryEntry myDE in SQLStringList)
                        {
                            string cmdText = myDE.Key.ToString();
                            SqlParameter[] cmdParms = (SqlParameter[])myDE.Value;
                            PrepareCommand(cmd, conn, trans, cmdText, cmdParms);
                            int val = cmd.ExecuteNonQuery();
                            cmd.Parameters.Clear();
                        }
                        trans.Commit();
                    }
                    catch
                    {
                        trans.Rollback();
                        throw;
                    }
                }
            }
        }
        ///// <summary>
        ///// 执行多条SQL语句，实现数据库事务。
        ///// </summary>
        ///// <param name="SQLStringList">SQL语句的哈希表（key为sql语句，value是该语句的SqlParameter[]）</param>
        //public static int ExecuteSqlTran(System.Collections.Generic.List<CommandInfo> cmdList)
        //{
        //    using (SqlConnection conn = new SqlConnection(connectionString))
        //    {
        //        conn.Open();
        //        using (SqlTransaction trans = conn.BeginTransaction())
        //        {
        //            SqlCommand cmd = new SqlCommand();
        //            try
        //            { int count = 0;
        //                //循环
        //                foreach (CommandInfo myDE in cmdList)
        //                {
        //                    string cmdText = myDE.CommandText;
        //                    SqlParameter[] cmdParms = (SqlParameter[])myDE.Parameters;
        //                    PrepareCommand(cmd, conn, trans, cmdText, cmdParms);
                           
        //                    if (myDE.EffentNextType == EffentNextType.WhenHaveContine || myDE.EffentNextType == EffentNextType.WhenNoHaveContine)
        //                    {
        //                        if (myDE.CommandText.ToLower().IndexOf("count(") == -1)
        //                        {
        //                            trans.Rollback();
        //                            return 0;
        //                        }

        //                        object obj = cmd.ExecuteScalar();
        //                        bool isHave = false;
        //                        if (obj == null && obj == DBNull.Value)
        //                        {
        //                            isHave = false;
        //                        }
        //                        isHave = Convert.ToInt32(obj) > 0;

        //                        if (myDE.EffentNextType == EffentNextType.WhenHaveContine && !isHave)
        //                        {
        //                            trans.Rollback();
        //                            return 0;
        //                        }
        //                        if (myDE.EffentNextType == EffentNextType.WhenNoHaveContine && isHave)
        //                        {
        //                            trans.Rollback();
        //                            return 0;
        //                        }
        //                        continue;
        //                    }
        //                    int val = cmd.ExecuteNonQuery();
        //                    count += val;
        //                    if (myDE.EffentNextType == EffentNextType.ExcuteEffectRows && val == 0)
        //                    {
        //                        trans.Rollback();
        //                        return 0;
        //                    }
        //                    cmd.Parameters.Clear();
        //                }
        //                trans.Commit();
        //                return count;
        //            }
        //            catch
        //            {
        //                trans.Rollback();
        //                throw;
        //            }
        //        }
        //    }
        //}
        ///// <summary>
        ///// 执行多条SQL语句，实现数据库事务。
        ///// </summary>
        ///// <param name="SQLStringList">SQL语句的哈希表（key为sql语句，value是该语句的SqlParameter[]）</param>
        //public static void ExecuteSqlTranWithIndentity(System.Collections.Generic.List<CommandInfo> SQLStringList)
        //{
        //    using (SqlConnection conn = new SqlConnection(connectionString))
        //    {
        //        conn.Open();
        //        using (SqlTransaction trans = conn.BeginTransaction())
        //        {
        //            SqlCommand cmd = new SqlCommand();
        //            try
        //            {
        //                int indentity = 0;
        //                //循环
        //                foreach (CommandInfo myDE in SQLStringList)
        //                {
        //                    string cmdText = myDE.CommandText;
        //                    SqlParameter[] cmdParms = (SqlParameter[])myDE.Parameters;
        //                    foreach (SqlParameter q in cmdParms)
        //                    {
        //                        if (q.Direction == ParameterDirection.InputOutput)
        //                        {
        //                            q.Value = indentity;
        //                        }
        //                    }
        //                    PrepareCommand(cmd, conn, trans, cmdText, cmdParms);
        //                    int val = cmd.ExecuteNonQuery();
        //                    foreach (SqlParameter q in cmdParms)
        //                    {
        //                        if (q.Direction == ParameterDirection.Output)
        //                        {
        //                            indentity = Convert.ToInt32(q.Value);
        //                        }
        //                    }
        //                    cmd.Parameters.Clear();
        //                }
        //                trans.Commit();
        //            }
        //            catch
        //            {
        //                trans.Rollback();
        //                throw;
        //            }
        //        }
        //    }
        //}
        /// <summary>
        /// 执行多条SQL语句，实现数据库事务。
        /// </summary>
        /// <param name="SQLStringList">SQL语句的哈希表（key为sql语句，value是该语句的SqlParameter[]）</param>
        public static void ExecuteSqlTranWithIndentity(Hashtable SQLStringList)
        {
            using (SqlConnection conn = new SqlConnection(connectionString))
            {
                conn.Open();
                using (SqlTransaction trans = conn.BeginTransaction())
                {
                    SqlCommand cmd = new SqlCommand();
                    try
                    {
                        int indentity = 0;
                        //循环
                        foreach (DictionaryEntry myDE in SQLStringList)
                        {
                            string cmdText = myDE.Key.ToString();
                            SqlParameter[] cmdParms = (SqlParameter[])myDE.Value;
                            foreach (SqlParameter q in cmdParms)
                            {
                                if (q.Direction == ParameterDirection.InputOutput)
                                {
                                    q.Value = indentity;
                                }
                            }
                            PrepareCommand(cmd, conn, trans, cmdText, cmdParms);
                            int val = cmd.ExecuteNonQuery();
                            foreach (SqlParameter q in cmdParms)
                            {
                                if (q.Direction == ParameterDirection.Output)
                                {
                                    indentity = Convert.ToInt32(q.Value);
                                }
                            }
                            cmd.Parameters.Clear();
                        }
                        trans.Commit();
                    }
                    catch
                    {
                        trans.Rollback();
                        throw;
                    }
                }
            }
        }
        /// <summary>
        /// 执行一条计算查询结果语句，返回查询结果（object）。
        /// </summary>
        /// <param name="SQLString">计算查询结果语句</param>
        /// <returns>查询结果（object）</returns>
        public static object GetSingle(string SQLString, params SqlParameter[] cmdParms)
        {
            using (SqlConnection connection = new SqlConnection(connectionString))
            {
                using (SqlCommand cmd = new SqlCommand())
                {
                    try
                    {
                        PrepareCommand(cmd, connection, null, SQLString, cmdParms);
                        object obj = cmd.ExecuteScalar();
                        cmd.Parameters.Clear();
                        if ((Object.Equals(obj, null)) || (Object.Equals(obj, System.DBNull.Value)))
                        {
                            return null;
                        }
                        else
                        {
                            return obj;
                        }
                    }
                    catch (System.Data.SqlClient.SqlException e)
                    {
                        throw e;
                    }
                }
            }
        }

        /// <summary>
        /// 执行查询语句，返回SqlDataReader ( 注意：调用该方法后，一定要对SqlDataReader进行Close )
        /// </summary>
        /// <param name="strSQL">查询语句</param>
        /// <returns>SqlDataReader</returns>
        public static SqlDataReader ExecuteReader(string SQLString, params SqlParameter[] cmdParms)
        {
            SqlConnection connection = new SqlConnection(connectionString);
            SqlCommand cmd = new SqlCommand();
            try
            {
                PrepareCommand(cmd, connection, null, SQLString, cmdParms);
                SqlDataReader myReader = cmd.ExecuteReader(CommandBehavior.CloseConnection);
                cmd.Parameters.Clear();
                return myReader;
            }
            catch (System.Data.SqlClient.SqlException e)
            {
                throw e;
            }
            //            finally
            //            {
            //                cmd.Dispose();
            //                connection.Close();
            //            }    

        }

        /// <summary>
        /// 执行查询语句，返回DataSet
        /// </summary>
        /// <param name="SQLString">查询语句</param>
        /// <returns>DataSet</returns>
        public static DataSet Query(string SQLString, params SqlParameter[] cmdParms)
        {
            using (SqlConnection connection = new SqlConnection(connectionString))
            {
                SqlCommand cmd = new SqlCommand();
                PrepareCommand(cmd, connection, null, SQLString, cmdParms);
                using (SqlDataAdapter da = new SqlDataAdapter(cmd))
                {
                    DataSet ds = new DataSet();
                    try
                    {
                        da.Fill(ds, "ds");
                        cmd.Parameters.Clear();
                    }
                    catch (System.Data.SqlClient.SqlException ex)
                    {
                        throw new Exception(ex.Message);
                    }
                    return ds;
                }
            }
        }


        private static void PrepareCommand(SqlCommand cmd, SqlConnection conn, SqlTransaction trans, string cmdText, SqlParameter[] cmdParms)
        {
            if (conn.State != ConnectionState.Open)
                conn.Open();
            cmd.Connection = conn;
            cmd.CommandText = cmdText;
            if (trans != null)
                cmd.Transaction = trans;
            cmd.CommandType = CommandType.Text;//cmdType;
            if (cmdParms != null)
            {


                foreach (SqlParameter parameter in cmdParms)
                {
                    if ((parameter.Direction == ParameterDirection.InputOutput || parameter.Direction == ParameterDirection.Input) &&
                        (parameter.Value == null))
                    {
                        parameter.Value = DBNull.Value;
                    }
                    cmd.Parameters.Add(parameter);
                }
            }
        }

        #endregion

        #region 存储过程操作

        /// <summary>
        /// 执行存储过程，返回SqlDataReader ( 注意：调用该方法后，一定要对SqlDataReader进行Close )
        /// </summary>
        /// <param name="storedProcName">存储过程名</param>
        /// <param name="parameters">存储过程参数</param>
        /// <returns>SqlDataReader</returns>
        public static SqlDataReader RunProcedure(string storedProcName, IDataParameter[] parameters)
        {
            SqlConnection connection = new SqlConnection(connectionString);
            SqlDataReader returnReader;
            connection.Open();
            SqlCommand command = BuildQueryCommand(connection, storedProcName, parameters);
            command.CommandType = CommandType.StoredProcedure;
            returnReader = command.ExecuteReader(CommandBehavior.CloseConnection);
            return returnReader;
            
        }


        /// <summary>
        /// 执行存储过程
        /// </summary>
        /// <param name="storedProcName">存储过程名</param>
        /// <param name="parameters">存储过程参数</param>
        /// <param name="tableName">DataSet结果中的表名</param>
        /// <returns>DataSet</returns>
        public static DataSet RunProcedure(string storedProcName, IDataParameter[] parameters, string tableName)
        {
            using (SqlConnection connection = new SqlConnection(connectionString))
            {
                DataSet dataSet = new DataSet();
                connection.Open();
                SqlDataAdapter sqlDA = new SqlDataAdapter();
                sqlDA.SelectCommand = BuildQueryCommand(connection, storedProcName, parameters);
                sqlDA.Fill(dataSet, tableName);
                connection.Close();
                return dataSet;
            }
        }
        public static DataSet RunProcedure(string storedProcName, IDataParameter[] parameters, string tableName, int Times)
        {
            using (SqlConnection connection = new SqlConnection(connectionString))
            {
                DataSet dataSet = new DataSet();
                connection.Open();
                SqlDataAdapter sqlDA = new SqlDataAdapter();
                sqlDA.SelectCommand = BuildQueryCommand(connection, storedProcName, parameters);
                sqlDA.SelectCommand.CommandTimeout = Times;
                sqlDA.Fill(dataSet, tableName);
                connection.Close();
                return dataSet;
            }
        }


        /// <summary>
        /// 构建 SqlCommand 对象(用来返回一个结果集，而不是一个整数值)
        /// </summary>
        /// <param name="connection">数据库连接</param>
        /// <param name="storedProcName">存储过程名</param>
        /// <param name="parameters">存储过程参数</param>
        /// <returns>SqlCommand</returns>
        private static SqlCommand BuildQueryCommand(SqlConnection connection, string storedProcName, IDataParameter[] parameters)
        {
            SqlCommand command = new SqlCommand(storedProcName, connection);
            command.CommandType = CommandType.StoredProcedure;
            foreach (SqlParameter parameter in parameters)
            {
                if (parameter != null)
                {
                    // 检查未分配值的输出参数,将其分配以DBNull.Value.
                    if ((parameter.Direction == ParameterDirection.InputOutput || parameter.Direction == ParameterDirection.Input) &&
                        (parameter.Value == null))
                    {
                        parameter.Value = DBNull.Value;
                    }
                    command.Parameters.Add(parameter);
                }
            }

            return command;
        }

        /// <summary>
        /// 执行存储过程，返回影响的行数        
        /// </summary>
        /// <param name="storedProcName">存储过程名</param>
        /// <param name="parameters">存储过程参数</param>
        /// <param name="rowsAffected">影响的行数</param>
        /// <returns></returns>
        public static int RunProcedure(string storedProcName, IDataParameter[] parameters, out int rowsAffected)
        {
            using (SqlConnection connection = new SqlConnection(connectionString))
            {
                int result;
                connection.Open();
                SqlCommand command = BuildIntCommand(connection, storedProcName, parameters);
                rowsAffected = command.ExecuteNonQuery();
                result = (int)command.Parameters["ReturnValue"].Value;
                //Connection.Close();
                return result;
            }
        }

        /// <summary>
        /// 创建 SqlCommand 对象实例(用来返回一个整数值)    
        /// </summary>
        /// <param name="storedProcName">存储过程名</param>
        /// <param name="parameters">存储过程参数</param>
        /// <returns>SqlCommand 对象实例</returns>
        private static SqlCommand BuildIntCommand(SqlConnection connection, string storedProcName, IDataParameter[] parameters)
        {
            SqlCommand command = BuildQueryCommand(connection, storedProcName, parameters);
            command.Parameters.Add(new SqlParameter("ReturnValue",
                SqlDbType.Int, 4, ParameterDirection.ReturnValue,
                false, 0, 0, string.Empty, DataRowVersion.Default, null));
            return command;
        }
        #endregion

    }

}