SQLServer中批量插入数据方式

技术方案：
ADO.NET2.0的一个新的特性：SqlBulkCopy。有关这个的性能，很早之前我是亲自做过性能测试的，效率非常高。

 

代码

      ///   <summary>
         ///  使用SqlBulkCopy方式插入数据
         ///   </summary>
         ///   <param name="dataTable"></param>
         ///   <returns></returns>
         private   static   long  SqlBulkCopyInsert()
        {
            Stopwatch stopwatch  =   new  Stopwatch();
            stopwatch.Start();

            DataTable dataTable  =  GetTableSchema();
             string  passportKey;
             for  ( int  i  =   0 ; i  <  count; i ++ )
            {
                passportKey  =  Guid.NewGuid().ToString();
                DataRow dataRow  =  dataTable.NewRow();
                dataRow[ 0 ]  =  passportKey;
                dataTable.Rows.Add(dataRow);
            }

            SqlBulkCopy sqlBulkCopy  =   new  SqlBulkCopy(connectionString);
            sqlBulkCopy.DestinationTableName  =   " Passport " ;
            sqlBulkCopy.BatchSize  =  dataTable.Rows.Count;
            SqlConnection sqlConnection  =   new  SqlConnection(connectionString);
            sqlConnection.Open();
             if  (dataTable != null   &&  dataTable.Rows.Count != 0 )
            {
                sqlBulkCopy.WriteToServer(dataTable);
            }
            sqlBulkCopy.Close();
            sqlConnection.Close();

            stopwatch.Stop();
             return  stopwatch.ElapsedMilliseconds;
        }

 

     private static DataTable GetTableSchema()
        {
            DataTable dataTable = new DataTable();
            dataTable.Columns.AddRange(new DataColumn[] { new DataColumn("PassportKey") });
            
            return dataTable;
        }