我正在从访问数据库读取数据并将其存储在临时sql表中，然后截断主sql表并插入新数据集，我正在使用下面的代码完成该任务，但是datetime给了我一些问题：< / p>
Console.WriteLine("NetWeightTracking-Abilene Started");
var du = new System.Data.DataTable();
string accdbConnStrabk = ConfigurationManager.ConnectionStrings["NetWeightAbk"].ToString();
using (var accdbConn = new OdbcConnection(accdbConnStrabk))
{
using (var da = new OdbcDataAdapter("SELECT * FROM [Net Weight Tracking]", accdbConn))
{
da.Fill(du);
}
}
Console.WriteLine("DataTable filled from NetWeight db NetWeightTracking-Abilene - Row count: {0}", du.Rows.Count, DateTime.Now.ToString());
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.Default, tran))
{
sbc.BatchSize = 100;
sbc.NotifyAfter = 100;
sbc.BulkCopyTimeout = 100;
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();
}
}
}
问题是由日期列引起的 任何帮助将不胜感激
我尝试检查访问数据库以查看是否有任何空日期但没有所有日期都可用，我在网上找到了这个解决方案：
DateTime.ParseExact (txtPunchDate.Text, "yyyy-MM-dd" , null)
我如何将其与我的控制台应用程序合并？ 谢谢:)）
答案 0 :(得分：1)
好吧，MS Access represents its datetime data type as a double：
30 December 1899 00:00:00 double的整数部分是距纪元的天数偏移量，double的小数部分是当天的小数部分。根据规范，MS Access datetime的日期部分的域名是
1 January 100 31 December 9999 由于SQL Server datetime的域名是：
1 January 1753 31 December 9999 1753年1月1日之前MS Access数据库中的任何日期都会导致问题。您需要找到虚假数据并进行修复。几种方法：
在您的访问数据库中，创建一个视图/查询，以便以适合SQL Server的形式显示数据。然后，从那里批量加载到SQL Server。
通常，由于您的源数据已被污染/损坏已成定局，因此在将数据批量加载到SQL Server时，会将源数据批量加载到工作表中，其中所有列可以为空，类型为varchar类型且没有约束/键。完成后，运行一个存储过程，在将数据移动到适当的家中之前对数据进行必要的清理和按摩。