在ASP.NET中，向数据库批量插入数据
向数据库中批量插入数据，可以将若干条数据一次插入道数据库，提高程序的执行效率，也可以减少我们的工作量。
批量插入数据，可以采用一下两种方法。
一、利用事务（Transaction）
‘定义执行批量插入数据的函数,参数为Insert SQL语句的数组
Sub ExeTransaction (Byval Sqlstrlist as string())
Dim Conn As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=Tax.mdb"
Dim trans as OledbTransaction=Nothing
Try
If conn.State=connectionstate.closed then
Conn.open()
End if
Dim cmd as oledbCommand=new oledbcommand()
cmd.connection=conn
cmd.commandtype=commandtype.text
trans=conn.BeginTransaction()
cmd.Transaction=trans
dim I as integer
for I=0 to Sqlstrlist.GetupperBound(0)
cmd.commandText= Sqlstrlist(i) ‘取得参数（数组）中的值
cmd.ExecuteNonQuery()
Next
Trans.commit()
Catch ex as oledbexception
Trans.Rollback()
Fanlly
Conn.close()
End try
End sub
二、利用Dataset
public sub Insert()
‘建立datatable数据源
dim dt as DataTable=New DataTable()
Dim dr as DataRow
Dt.Columns.Add(new DataColumn(“name”))
Dim j as Integer
For j =0 to 10
Dr=dt.newrow()
Dr(0)=”name”+j.toString
Dt.Rows.Add(dr)
Next
Dim Conn As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=Tax.mdb"
Conn.open()
Dim MyAdapter as Oledbdataadapter=new OleDataAdapter()
….
Dim cmd as Oledbcommand=New Oledbcommand(“Insert Into table(name) values (@name)”,conn)
cmd.parameters.item(“@name”).SourceColumns=dt.columns(“name”).columnsName
myAdapter.update(dt)
conn.close()
end sub
利用以上的两种方法，都可以完成向数据库批量插入数据。
//////////////////////////////例
List<string> sSqls = new List<string>();
int iMenuLine = Convert.ToInt32(_oOpenedTableInfo["menu_line"]) ;
foreach (CSelDish oSelDish in _oLstSelDish)
{
//p_insertSellDetail( @userid @sysno @menu_line @menucode @menu_cname @numbers@price @unit @markdesc @setflag @largessflag @OpType @IsOK)
iMenuLine++;
sSqls.Add(String.Format("exec p_insertSellDetail {0},{1},{2},{3},{4},{5},{6},{7},{8},{9},{10},{11},{12}",
_oCommon.procStr(_oCommon.UserID), _oCommon.procStr(_oOpenedTableInfo["sysno"]),
iMenuLine, _oCommon.procStr(oSelDish.DishNo), _oCommon.procStr(oSelDish.DishName), oSelDish.Qty,
oSelDish.Price, _oCommon.procStr(oSelDish.Unit), _oCommon.procStr(oSelDish.Remark),
_oCommon.procStr(oSelDish.IsSet), _oCommon.procStr(oSelDish.CanLargess), 0, 1));
if (oSelDish.IsLargess)
{
sSqls.Add(String.Format("exec p_insertSellDetail {0},{1},{2},{3},{4},{5},{6},{7},{8},{9},{10},{11},{12}",
_oCommon.procStr(_oCommon.UserID), _oCommon.procStr(_oOpenedTableInfo["sysno"]),
iMenuLine, _oCommon.procStr(oSelDish.DishNo), _oCommon.procStr(oSelDish.DishName), oSelDish.Qty,
oSelDish.Price, _oCommon.procStr(oSelDish.Unit), _oCommon.procStr(oSelDish.Remark),
_oCommon.procStr(oSelDish.IsSet), _oCommon.procStr(oSelDish.CanLargess), 2, 1));
}
}
if (_oLstSelDish.Count > 0)
sSqls.Add("update opentables set menu_line=0" + iMenuLine + " where sysno=" + _oCommon.procStr(_oOpenedTableInfo["sysno"]));
try
{
DataClass.CDataInterface oDA = new MidasTouch.DataClass.CDataInterface();
oDA.beginExec();
foreach (string s in sSqls)
oDA.execSql(s);
oDA.endExec();//事务
_oOpenedTableInfo["menu_line"] = iMenuLine;
ClearSelDish();
_bsendDish = true;
// this.DialogResult = DialogResult.Yes;
return true;
}
catch (Exception ex)
{
_oCommon.ShowInfo("发送失败："+ex.Message);
return false;
}
///////////////
/// <summary>
/// 执行一段SQL语句
/// </summary>
/// <param name="sSql"></param>
/// <returns>返回受影响的行数</returns>
public int execSql(string sSql)
{
SqlCommand oCmd = new SqlCommand(sSql, _oConn);
oCmd.Transaction = _oTran;
return oCmd.ExecuteNonQuery();
}
////////////////
/// <summary>
/// 准备开始执行
/// </summary>
public void beginExec()
{
_oConn = new SqlConnection();
_oConn.ConnectionString = _oCommon.ConnStr;
_oConn.Open();
_oTran = _oConn.BeginTransaction();
}
////////////////////
/// <summary>
/// 结束执行
/// </summary>
public void endExec()
{
_oTran.Commit();
_oConn.Close();
}
/////////////////
/// <summary>
/// 取消执行
/// </summary>
public void cancelExec()
{
if (_oConn != null)
{
if (_oTran != null)
_oTran.Rollback();
_oConn.Close();
}
}
