Question

我遇到一个问题，即查询构建器返回的数据与查询构建器或Visual Studio 2015上的数据预览显示的数据不同。

我的SQL查询是：

SELECT        
    COUNT(Date_Order_Despatched.[Order Number]) AS Orders, 
    CONVERT(varchar(10), DATEADD(DAY, @day * (DATEDIFF(day, @fromdate, Date_Order_Despatched.[Date Order Desptached]) / @day), @fromdate), 20) AS DateDespatched, 
    (CASE 
         WHEN scheme.waopheadm.courier_serv_name = 'Generic Next Day' 
            THEN 'B2B' 
         WHEN scheme.waopheadm.courier_serv_name = 'Generic Pallet Service' 
            THEN 'B2B' 
         ELSE 'B2C' 
     END) AS B2BorB2C
FROM 
    Date_Order_Despatched 
INNER JOIN
    scheme.waopheadm ON Date_Order_Despatched.[Order Number] = scheme.waopheadm.orderkey
WHERE
    (Date_Order_Despatched.[Date Order Desptached] BETWEEN @fromdate AND @todate)
GROUP BY 
    (DATEADD(DAY, @day * (DATEDIFF(day, @fromdate, Date_Order_Despatched.[Date Order Desptached]) / @day), @fromdate)), 
    (CASE WHEN scheme.waopheadm.courier_serv_name = 'Generic Next Day' THEN 'B2B' WHEN scheme.waopheadm.courier_serv_name = 'Generic Pallet Service' THEN 'B2B' ELSE 'B2C' END)

这是我从这个查询得到的结果：

989 2016-08-01  B2C
575 2016-08-06  B2C
432 2016-08-11  B2C
678 2016-08-16  B2C
870 2016-08-21  B2C
840 2016-08-26  B2C
678 2016-08-31  B2C
3   2016-09-05  B2C

这是具有相同参数的datagridview的结果：

257 01/08/2016  
240 02/08/2016  
147 03/08/2016  
195 04/08/2016  
150 05/08/2016  
193 08/08/2016  
165 09/08/2016  
217 10/08/2016  
164 11/08/2016  
128 12/08/2016  
140 15/08/2016  
186 16/08/2016  
140 17/08/2016  
169 18/08/2016  
183 19/08/2016  
223 22/08/2016  
205 23/08/2016  
181 24/08/2016  
261 25/08/2016  
255 26/08/2016  
333 29/08/2016  
252 30/08/2016  
237 31/08/2016  
211 01/09/2016  
230 02/09/2016  
3   05/09/2016

感谢您的任何帮助。

c＃代码绑定数据：

using (SqlConnection sqlConnection = new SqlConnection(sqlConnectionString))
                    {
                        sqlConnection.Open();
                        cs3liveDataSet.EnforceConstraints = false;
                        order_Despatched_ScreeTableAdapter.FillChartPerXDaysAll(cs3liveDataSet.Order_Despatched_Scree,Convert.ToInt16(otherNumericUpDown.Value), Convert.ToDateTime(fromDateTimePicker.Value), Convert.ToDateTime(toDateTimePicker.Value), B2BOrB2CComboBox.Text);
                        OrderDataGridView.Refresh();
                        OrderDataGridView.Visible = true;
                        OrderDataGridView.Enabled = true;
                        sqlConnection.Close();
                    }

我重做了代码，以便从sqlcommand中获取：

using (SqlConnection sqlConnection = new SqlConnection(sqlConnectionString))
                    {
                        sqlConnection.Open();
                        SqlCommand cmd = new SqlCommand(@"SELECT COUNT([Order Number]) AS Orders, CONVERT(varchar(10), DATEADD(DAY, (5*(DATEDIFF(day, @FROMDATE, [Date Order Desptached])/5)), @FROMDATE), 103) AS DateDespatched FROM Date_Order_Despatched WHERE ([Date Order Desptached] BETWEEN @FROMDATE AND @TODATE) GROUP BY CONVERT(varchar(10), DATEADD(DAY, (5*(DATEDIFF(day, @FROMDATE, [Date Order Desptached])/5)),@FROMDATE), 103)", sqlConnection);
                        //cmd.Parameters.AddWithValue("@DAY",otherNumericUpDown.Value);//@DAY
                        cmd.Parameters.AddWithValue("@FROMDATE", SqlDbType.DateTime).Value = fromDateTimePicker.Value;//@FROMDATE
                        cmd.Parameters.AddWithValue("@TODATE", SqlDbType.DateTime).Value = toDateTimePicker.Value;//@TODATE
                        SqlDataAdapter SDA = new SqlDataAdapter(cmd);
                        DataTable dt = new DataTable();
                        SDA.Fill(dt);
                        OrderDataGridView.DataSource = dt;
                        OrderDataGridView.Refresh();                     
                        OrderDataGridView.Enabled = true;
                        sqlConnection.Close();
                    }

Datagridview显示查询构建器

0 个答案: