小编dan*_*_87的帖子

我正在使用SqlBulkCopy类执行SQL批量复制。我创建了目标表，使其与源表完全相同。它们都具有相同的表名，列名，数据类型，甚至具有相同的排序规则。我也做了sql映射以确保准确性。

我的代码如下：

SqlConnection SourceConnection =  new SqlConnection(SourceConnectionString);
SqlConnection DestinationConnection =  new SqlConnection(DestinationConnectionString);

DestinationConnection.Open();
SourceConnection.Open();

SqlCommand commandSourceData = new SqlCommand("SELECT * FROM Requisitions;", SourceConnection);

SqlDataReader reader = commandSourceData.ExecuteReader();    

    using (SqlBulkCopy bulkCopy = new SqlBulkCopy(DestinationConnection))

    {
           bulkCopy.DestinationTableName = "Requisitions";


           bulkCopy.ColumnMappings.Add("RequisitionId", "RequisitionId");
           bulkCopy.ColumnMappings.Add("CreatedBy", "CreatedBy");
           bulkCopy.ColumnMappings.Add("DateCreated", "DateCreated");
           bulkCopy.ColumnMappings.Add("AircraftTailNum", "AircraftTailNum");
           bulkCopy.ColumnMappings.Add("JobNumber", "JobNumber");
           bulkCopy.ColumnMappings.Add("ShopCode", "ShopCode");
           bulkCopy.ColumnMappings.Add("RequestedByName", "RequestedByName");
           bulkCopy.ColumnMappings.Add("RequestedById", "RequestedById");
           bulkCopy.ColumnMappings.Add("Status", "Status");
           bulkCopy.ColumnMappings.Add("IsCancelled", "IsCancelled");
           bulkCopy.ColumnMappings.Add("IsProcessed", "IsProcessed");


           try
               {
                  // Write from the source to the destination.
                  bulkCopy.WriteToServer(reader);
                }
          catch (Exception ex)
                {
                     Console.WriteLine(ex.Message);
                 }
          finally
                 {

                    reader.Close(); …