Question

我编写了一个控制台应用程序，它从我的访问表中提取数据，然后使用sql批量复制到临时sql表，然后从临时表中将其加载到主sql表中。应用程序按预期工作，但它从访问表中提取26624行，当它在批量复制上执行WriteToServer时，它只复制24880行，因此当插入主sql表时，只插入24880行。大约1744行丢失，但我确实得到了例外

＆＃34; SqlDateTime溢出。必须在1/1/1753 12:00:00 AM之间 12/31/9999 11:59:59 PM。＆＃34;

我的访问列是开始时间和停止时间，这些列的默认值为data = 12/30/1899，但时间会发生变化。

我用来移动数据的代码：

string sqlConnStrabk = ConfigurationManager.ConnectionStrings["sqlconabk"].ToString();

using (var sqlConn = new SqlConnection(sqlConnStrabk))
{
    sqlConn.Open();
    using (var cmd = new SqlCommand())
    {
        cmd.Connection = sqlConn;
        cmd.CommandText = 
            "CREATE TABLE #NetWeightTracking (" + 
            "[Date] [datetime] NULL," + 
            "[Unit UPC Base Item] [nvarchar](50) NULL," + 
            "[Item (Optional)] [nvarchar](50) NULL," + 
            "[Preset Number] [nvarchar](50) NULL," + 
            "[Product Group] [nvarchar](255) NULL," + 
            "[Shift] [nvarchar](255) NULL," + 
            "[Rotation Code] [nvarchar](255) NULL," + 
            "[BBD] [nvarchar](255) NULL," + 
            "[Operator Name] [nvarchar](255) NULL," + 
            "[Supervisor] [nvarchar](255) NULL," + 
            "[Production Line] [nvarchar](255) NULL," + 
            "[Bagger Number] [float] NULL," + 
            "[Start Time] [datetime] NULL," + 
            "[Stop Time] [datetime] NULL," + 
            "[Under Counts] [float] NULL," + 
            "[Label Wt on Pkg (g)] [float] NULL," + 
            "[Machine Tare Wt (g)] [float] NULL," + 
            "[Actual Tare Wt (g)] [float] NULL," + 
            "[Verify Target Wt (g)] [float] NULL," + 
            "[Total Count (Proper)] [float] NULL," + 
            "[Mean Gross (g)] [float] NULL," + 
            "[Rptd Mean Net (g)] [float] NULL," + 
            "[Std Dev (g)] [float] NULL," + 
            "[Max (g)] [float] NULL," + 
            "[Min (g)] [float] NULL," + 
            "[TNE (g)] [float] NULL," + 
            "[Comments] [nvarchar](50) NULL," + 
            "[Field1] [datetime] NULL," + 
            "[Field2] [datetime] NULL," + 
            "[Field3] [nvarchar](255) NULL," + 
            "[Field4] [nvarchar](255) NULL," + 
            "[Field5] [nvarchar](255) NULL," + 
            "[Field6] [nvarchar](255) NULL," + 
            "[Field7] [nvarchar](255) NULL, " + 
            "[Row] [int] IDENTITY(1,1) NOT NULL" + 
            ")";
        cmd.ExecuteNonQuery();
    }
    using (SqlTransaction tran = sqlConn.BeginTransaction(System.Data.IsolationLevel.ReadCommitted))
    {
        try
        {
            using (var sbc = new SqlBulkCopy(sqlConn, SqlBulkCopyOptions.KeepIdentity, tran))
            {
                sbc.BatchSize = 10;
                sbc.NotifyAfter = 100;
                sbc.BulkCopyTimeout = 1000;
                sbc.DestinationTableName = "#NetWeightTracking";
                Console.WriteLine(DateTime.Now.ToString());
                sbc.WriteToServer(du);

                Console.WriteLine("After Datatable", DateTime.Now.ToString());
            }
        }
        catch (Exception ex)
        {
            Console.WriteLine(ex.Message.ToString());
        }

        Console.WriteLine(DateTime.Now.ToString());

        using (var cmd = new SqlCommand())
        {
            cmd.Connection = sqlConn;
            cmd.Transaction = tran;
            cmd.CommandText = "SELECT COUNT(*) AS n FROM #NetWeightTracking";
            Console.WriteLine("SqlBulkCopy complete. Temp table row count: {0}", cmd.ExecuteScalar());
            cmd.CommandText = "TRUNCATE TABLE [dbo].[Net Weight Tracking]";
            cmd.ExecuteNonQuery();
            Console.WriteLine("Truncated NetWeightTrackingTable");

            cmd.CommandText = 
                "INSERT INTO [dbo].[Net Weight Tracking] (" + 
                "[Date],[Unit UPC Base Item],[Item (Optional)]," + 
                "[Preset Number],[Product Group],[Shift],[Rotation Code]," + 
                "[BBD],[Operator Name],[Supervisor],[Production Line]," + 
                "[Bagger Number],[Start Time],[Stop Time],[Under Counts]," + 
                "[Label Wt on Pkg (g)],[Machine Tare Wt (g)]," + 
                "[Actual Tare Wt (g)],[Verify Target Wt (g)]," + 
                "[Total Count (Proper)],[Mean Gross (g)],[Rptd Mean Net (g)]," + 
                "[Std Dev (g)],[Max (g)],[Min (g)],[TNE (g)],[Comments]," + 
                "[Field1],[Field2],[Field3])  " + 
                "SELECT Z.[Date]," + 
                "Z.[Unit UPC Base Item],Z.[Item (Optional)]," + 
                "Z.[Preset Number],Z.[Product Group],Z.[Shift]," + 
                "Z.[Rotation Code],Z.[BBD],Z.[Operator Name]," + 
                "Z.[Supervisor],Z.[Production Line],Z.[Bagger Number]," + 
                "Z.[Start Time],Z.[Stop Time],Z.[Under Counts]," + 
                "Z.[Label Wt on Pkg (g)],Z.[Machine Tare Wt (g)]," + 
                "Z.[Actual Tare Wt (g)],Z.[Verify Target Wt (g)]," + 
                "Z.[Total Count (Proper)],Z.[Mean Gross (g)]," + 
                "Z.[Rptd Mean Net (g)],Z.[Std Dev (g)]," + 
                "Z.[Max (g)],Z.[Min (g)],Z.[TNE (g)],Z.[Comments]," + 
                "Z.[Field1],Z.[Field2],Z.[Field3] " + 
                "FROM  #NetWeightTracking Z";
            Console.WriteLine(DateTime.Now.ToString());
            cmd.ExecuteNonQuery();
            cmd.CommandText = "SELECT COUNT(*) AS m FROM [dbo].[Net Weight Tracking]";
            Console.WriteLine("Inserted Records into NetWeightTracking:{0}",    cmd.ExecuteScalar());
        }
        tran.Commit();
    }
}

请帮忙!!!我不知道如何找出为什么1744行没有从我看到的默认12/30/1899插入是在1/1/1753 - 12/31/9999之间我从其他文章中读到它说如果没有附加日期它将默认日期设置为1/1/0001然后我可以理解它超出预期范围因此导致溢出。

Answer 1

您需要查看Access中的数据，找到/修复这些错误的列值，或者在导出后在TSQL中处理它们。一个调试选项 - 用真实表替换临时表，用字符串替换datetime数据类型，执行导出，然后查询表以查找错误值，以便了解要查找的数据类型。之后，您可以将其切换回临时表，但在导入时，您应该在SELECT语句中处理无效的日期时间格式，可能使用CASE和CONVERT / CAST。

使用Sql批量复制

1 个答案: