using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using System.Data.Common;
using System.Configuration;
using System.Data.SqlClient;
using System.Collections;
namespace Common.Dba
{
public class DbAccess
{
private string _ConnectionString = "";
public string ConnectionString
{
get {
return "Data Source=ORACLE9I;User Id=wangdetian;Password=wangdetian;";
//_ConnectionString = string.IsNullOrEmpty(_ConnectionString) ? ("") : (_ConnectionString);
//return _ConnectionString.Length > 0 ? (_ConnectionString) : (Convert.ToString(ConfigurationManager.AppSettings["datasource"] ?? ""));
}
}
public DbConnection conn = null;
protected DbCommand cmd = null;
/// <summary>
/// 获取数据根据Oracle语句
/// </summary>
/// <param name="Oracle"></param>
/// <returns></returns>
public virtual DataTable GetTable(string sql)
{
return new DataTable();
}
/// <summary>
/// 获取数据根据sql语句
/// </summary>
/// <param name="sql"></param>
/// <returns></returns>
public virtual DataSet GetDataSet(string sql)
{
return new DataSet();
}
/// <summary>
/// 获取数据根据sql语句
/// </summary>
/// <param name="sql"></param>
/// <returns></returns>
public virtual DataSet GetDataSet(string sql, DbParameter[] pas)
{
return new DataSet();
}
/// <summary>
/// 获取数据根据sql语句 带参数 的
/// </summary>
/// <param name="sql"></param>
/// <param name="pas"></param>
/// <returns></returns>
public virtual DataTable GetTable(string sql, params DbParameter[] pas)
{
return new DataTable();
}
/// <summary>
/// 获取数据根据sql语句 带参数 的
/// </summary>
/// <param name="sql"></param>
/// <param name="pas"></param>
/// <returns></returns>
public virtual DataTable GetProcTable(string procname, params DbParameter[] pas)
{
return new DataTable();
}
/// <summary>
/// 获取数据根据sql语句 带参数 的
/// </summary>
/// <param name="sql"></param>
/// <param name="pas"></param>
/// <returns></returns>
public virtual DataTable GetProcCursorTable(string procname, params DbParameter[] pas)
{
return new DataTable();
}
/// <summary>
/// 获取数据根据sql语句 带参数 的
/// </summary>
/// <param name="sql"></param>
/// <param name="pas"></param>
/// <returns></returns>
public virtual int GetProcState(string procname, params DbParameter[] pas)
{
return 0;
}
/// <summary>
/// 获取数据根据sql语句 带参数 的
/// </summary>
/// <param name="sql"></param>
/// <param name="pas"></param>
/// <returns></returns>
public virtual int GetProcStateNo(string procname, params DbParameter[] pas)
{
return 0;
}
/// <summary>
/// 存储过程返回值的
/// </summary>
/// <param name="sql"></param>
/// <param name="pas"></param>
/// <returns></returns>
public virtual string GetProcStateReturnValue(string procname, params DbParameter[] pas)
{
return "";
}
/// <summary>
/// 根据sql语句返回跟新状态
/// </summary>
/// <param name="sql"></param>
/// <returns></returns>
public virtual bool GetState(string sql)
{
return false;
}
/// <summary>
/// 根据sql语句返回跟新状态带参数的
/// </summary>
/// <param name="sql">sql语句</param>
/// <param name="pas">参数的集合</param>
/// <returns></returns>
public virtual bool GetState(string sql, params DbParameter[] pas)
{
return false;
}
/// <summary>
/// 根据sql语句返回第一个单元格的数据
/// </summary>
/// <param name="sql"></param>
/// <returns></returns>
public virtual string GetOne(string sql)
{
return "";
}
/// <summary>
/// 根据sql语句返回第一个单元格的数据带参数的
/// </summary>
/// <param name="sql"></param>
/// <param name="pas"></param>
/// <returns></returns>
public virtual string GetOne(string sql, params DbParameter[] pas)
{
return "";
}
/// <summary>
/// 返回数据的DataReader
/// </summary>
/// <param name="sql"></param>
/// <returns></returns>
public virtual DbDataReader GetDataReader(string sql)
{
DbDataReader dr = null;
return dr;
}
/// <summary>
/// 返回数据的DataReader带参数的
/// </summary>
/// <param name="sql"></param>
/// <param name="pas"></param>
/// <returns></returns>
public virtual DbDataReader GetDataReader(string sql, params DbParameter[] pas)
{
DbDataReader dr = null;
return dr;
}
/// <summary>
/// 事务处理函数
/// </summary>
/// <param name="al"></param>
/// <returns></returns>
public virtual bool GetTranState(ArrayList al)
{
return false;
}
/// <summary>
/// 事务处理函数
/// </summary>
/// <param name="al"></param>
/// <returns></returns>
public virtual bool GetTranStateParameter(ArrayList al)
{
return false;
}
/// <summary>
/// 分页函数
/// </summary>
/// <param name="pagesize"></param>
/// <param name="columns"></param>
/// <param name="tablename"></param>
/// <param name="pid"></param>
/// <param name="order"></param>
/// <param name="current"></param>
/// <returns></returns>
public virtual DataTable GetPageData(int current, int pagesize, string columns, string tablename, string pid, string where, string order)
{
current = current - 1 >= 0 ? (current - 1) : (0);
string sql = string.Format("select top {0} {1} from {2} where 1=1 and {3} not in(select top {4}{3} from {2} where 1=1{5} order by {6}){5} order by {6}", pagesize, columns, tablename, pid, current * pagesize, where, order);
return GetTable(sql);
}
/// <summary>
/// 分页存储过程的调用
/// </summary>
/// <param name="current"></param>
/// <param name="pagesize"></param>
/// <param name="columns"></param>
/// <param name="tablename"></param>
/// <param name="pid"></param>
/// <param name="where"></param>
/// <param name="order"></param>
/// <returns></returns>
public virtual DataTable GetProcPageData(int current, int pagesize, string columns, string tablename, string pid, string where, string order, string ordertype)
{
return new DataTable();
}
/// <summary>
/// 分页存储过程的调用
/// </summary>
/// <param name="current"></param>
/// <param name="pagesize"></param>
/// <param name="columns"></param>
/// <param name="tablename"></param>
/// <param name="pid"></param>
/// <param name="where"></param>
/// <param name="order"></param>
/// <returns></returns>
public virtual DataTable GetProcData(int current, int pagesize, string columns, string tablename, string pid, string where, string order, string resultCount, string distinct)
{
return new DataTable();
}
/// <summary>
/// 分页存储过程的调用
/// </summary>
/// <param name="current"></param>
/// <param name="pagesize"></param>
/// <param name="columns"></param>
/// <param name="tablename"></param>
/// <param name="pid"></param>
/// <param name="where"></param>
/// <param name="order"></param>
/// <returns></returns>
public virtual DataTable GetProcAdminData(int current, int pagesize, string columns, string tablename, string pid, string where, string order, string resultCount, string distinct)
{
return new DataTable();
}
public virtual DbParameter[] MakeParameters(params string[] str)
{
return null;
}
/// <summary>
/// 打开连接
/// </summary>
public void OpenConn()
{
if (conn.State != ConnectionState.Open)
{
try
{
conn.Open();
}
catch (Exception ex)
{
throw ex;
}
}
}
/// <summary>
/// 关闭连接
/// </summary>
public void CloseConn()
{
if (conn.State != ConnectionState.Closed)
{
try
{
conn.Close();
}
catch (Exception ex)
{
throw ex;
}
}
}
/// <summary>
/// 销毁连接
/// </summary>
public void DisposeConn()
{
try
{
if (conn.State != ConnectionState.Closed)
{
try
{
conn.Close();
}
catch (Exception ex)
{
throw ex;
}
}
}
catch
{
}
}
}
}
