本文实例讲述了C#实现SQL批量插入数据到表的方法。分享给大家供大家参考，具体如下：
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#region 帮助实例：SQL 批量插入数据 多种方法/// <summary>/// SqlBulkCopy往数据库中批量插入数据/// </summary>/// <param name="sourceDataTable">数据源表</param>/// <param name="targetTableName">服务器上目标表</param>/// <param name="mapping">创建新的列映射，并使用列序号引用源列和目标列的列名称。</param>public static void BulkToDB(DataTable sourceDataTable, string targetTableName, SqlBulkCopyColumnMapping[] mapping){ /* 调用方法 -2012年11月16日编写 //DataTable dt = Get_All_RoomState_ByHID(); //SqlBulkCopyColumnMapping[] mapping = new SqlBulkCopyColumnMapping[4]; //mapping[0] = new SqlBulkCopyColumnMapping("Xing_H_ID", "Xing_H_ID"); //mapping[1] = new SqlBulkCopyColumnMapping("H_Name", "H_Name"); //mapping[2] = new SqlBulkCopyColumnMapping("H_sName", "H_sName"); //mapping[3] = new SqlBulkCopyColumnMapping("H_eName", "H_eName"); //BulkToDB(dt, "Bak_Tts_Hotel_Name", mapping); */ SqlConnection conn = new SqlConnection(SQLHelper.ConnectionString); SqlBulkCopy bulkCopy = new SqlBulkCopy(conn); //用其它源的数据有效批量加载sql server表中 bulkCopy.DestinationTableName = targetTableName; //服务器上目标表的名称 bulkCopy.BatchSize = sourceDataTable.Rows.Count; //每一批次中的行数 try { conn.Open(); if (sourceDataTable != null && sourceDataTable.Rows.Count != 0) { for (int i = 0; i < mapping.Length; i++) bulkCopy.ColumnMappings.Add(mapping[i]); //将提供的数据源中的所有行复制到目标表中 bulkCopy.WriteToServer(sourceDataTable ); } } catch (Exception ex) { //throw ex; Common.WriteTextLog("BulkToDB", ex.Message); } finally { conn.Close(); if (bulkCopy != null) bulkCopy.Close(); }}/// <summary>/// SQL2008以上方可支持自定义表类型 :调用存储过程游标-往数据库中批量插入数据 ，注意/// </summary>/// <param name="sourceDataTable"></param>public void DataTableToHotelDB(DataTable sourceDataTable){ /* -2012年11月15日编写 ALTER PROCEDURE [dbo].[P_InsertSubject] @tempStudentID int AS DECLARE rs CURSOR LOCAL SCROLL FOR select H_ID from Tts_Hotel_Name OPEN rs FETCH NEXT FROM rs INTO @tempStudentID WHILE @@FETCH_STATUS = 0 BEGIN Insert student (tempStudentID) values (@tempStudentID) FETCH NEXT FROM rs INTO @tempStudentID END CLOSE rs * *************************************************************** * create table Orders ( Orders_ID int identity(1,1) primary key, ItemCode nvarchar(50) not null, UM nvarchar(20) not null, Quantity decimal(18,6) not null, UnitPrice decimal(18,6) not null ) --创建用户自定义表类型，在可编程性->类型性->用户自定义表类型 create type OrdersTableType as table ( ItemCode nvarchar(50) not null, UM nvarchar(20) not null, Quantity decimal(18,6) not null, UnitPrice decimal(18,6) not null ) go create procedure Pro_Orders ( @OrdersCollection OrdersTableType readonly ) as insert into Orders([ItemCode],[UM],[Quantity],[UnitPrice]) SELECT oc.[ItemCode],oc.[UM],[Quantity],oc.[UnitPrice] FROM @OrdersCollection AS oc; go * */ SqlParameter[] parameters = {new SqlParameter("@OrdersCollection", SqlDbType.Structured)}; parameters[0].Value = sourceDataTable; new SQLHelper().ExecuteScalar("P_DataTable_ToHotelDB", parameters, true);}#endregion |
希望本文所述对大家C#程序设计有所帮助。
