#region 幫助實例：SQL 批量插入數據 多種方法/// <summary>/// SqlBulkCopy往數據庫中批量插入數據/// </summary>/// <param name="sourceDataTable">數據源表</param>/// <param name="targetTableName">服務器上目標表</param>/// <param name="mapping">創建新的列映射，并使用列序號引用源列和目標列的列名稱。</param>public static void BulkToDB(DataTable sourceDataTable, string targetTableName, SqlBulkCopyColumnMapping[] mapping){  /* 調用方法 -2012年11月16日編寫  //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);  //用其它源的數據有效批量加載sql server表中  bulkCopy.DestinationTableName = targetTableName;  //服務器上目標表的名稱  bulkCopy.BatchSize = sourceDataTable.Rows.Count;  //每一批次中的行數  try  {    conn.Open();    if (sourceDataTable != null && sourceDataTable.Rows.Count != 0)    {      for (int i = 0; i < mapping.Length; i++)        bulkCopy.ColumnMappings.Add(mapping[i]);      //將提供的數據源中的所有行復制到目標表中      bulkCopy.WriteToServer(sourceDataTable );      }  }  catch (Exception ex)  {    //throw ex;    Common.WriteTextLog("BulkToDB", ex.Message);  }  finally  {    conn.Close();    if (bulkCopy != null)      bulkCopy.Close();  }}/// <summary>/// SQL2008以上方可支持自定義表類型 :調用存儲過程游標-往數據庫中批量插入數據 ，注意/// </summary>/// <param name="sourceDataTable"></param>public void DataTableToHotelDB(DataTable sourceDataTable){  /* -2012年11月15日編寫    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    )    --創建用戶自定義表類型，在可編程性->類型性->用戶自定義表類型    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