Question

我尝试使用bulkCopy.WriteToServer()将数据从远程SQL Server Express复制到本地SQL Server Express，但是没有数据写入我的本地SQL Server Express数据库。

代码立即跳过WriteToServer()方法......我不知道它是否在内部失败并且没有显示错误消息

我已阅读How to duplicate a SQL Server 2000 table programatically using .NET 2.0?，我使用的代码非常相似。虽然我在远程和SQL Server 2014 Express本地使用SQL Server 2008 Express：

using (SqlConnection remoteConnection = new SqlConnection(remoteConnectionString))
{
    var query = "SELECT * FROM information_schema.tables WHERE table_type = 'base table'";
    SqlCommand commandGetTables = new SqlCommand(query, remoteConnection);

    try
    {
        remoteConnection.Open();
        SqlDataReader results = commandGetTables.ExecuteReader();

        while (results.Read())
        {
            tables.Add(results.GetString(2));
        }

        results.Close();
    }
    catch (Exception ex)
    {
        //stuff
    }
    finally
    {
        remoteConnection.Close();
    }

    remoteConnection.Open();

    foreach (var table in tables)
    {                    
        // Get data from the source table as a SqlDataReader.
        var commandSourceData = new SqlCommand("SELECT * FROM " + table + ";", remoteConnection);
        var reader = commandSourceData.ExecuteReader();

        using (SqlConnection destinationConnection = new SqlConnection(destinationConnectionString))
        {
            destinationConnection.Open();

            using (var bulkCopy = new SqlBulkCopy(destinationConnection))
            {
                bulkCopy.DestinationTableName = table;

                try
                {
                    // Write from the source to the destination.
                    bulkCopy.WriteToServer(reader);
                }
                catch (Exception ex)
                {
                    //stuff
                }
                finally
                {
                    //stuff removed for this post
                }
            }
        }
    }

    remoteConnection.Close();
}
return true;

我知道这可能会受到SQL注入等的影响，但这个应用程序只供我使用，而不是这里的问题。

我做错了什么？

修改

我检查了读者的价值（var reader = commandSourceData.ExecuteReader();）并且它有我想要的条目，这意味着他从遥控器上读的很好。

Answer 1

bulkCopy.DestinationTableName = table;
bulkCopy.WriteToServer(reader);

这些行是错误的，它应该看起来像这样..

bulkCopy.DestinationTableName = "dbo." + DataTable.TableName; 
bulkCopy.WriteToServer(DataTable);

bulkCopy.WriteToServer不会复制

1 个答案: