我有一个查询,我将数据集作为数据表放入。查询运行很好,但是在数据表中它没有列出数据列中的任何内容,因为我无法报告它...任何想法为什么这不起作用?我的查询如下。
SELECT * FROM (
SELECT timeclock.dtTimeIn, timeclock.dtTimeOut, employees.sfirstname,
RANK() OVER ( ORDER BY dtTimeIn) rk1, --earliest record gets 1
RANK() OVER (ORDER BY dtTimeOut DESC) rk2 --latest record gets 1
FROM TimeClock INNER JOIN
Employees ON TimeClock.lEmployeeID = Employees.lEmployeeID
WHERE (dtTimeIn > dateadd(day, datediff(day, 0, getdate())-1, 0)) AND (dtTimeOut < dateadd(day, datediff(day, 0, getdate()), 0)) AND
(sDept IN ('1', '2', '3'))
) A
WHERE rk2=1
运行查询时的当前输出:
dtTimeIn dtTimeOut sfirstname rk1 rk2
2/7/2013 2:36:00 PM 2/7/2013 7:52:33 PM Brian 10 1
在wizzard中创建表适配器时...我收到一条错误消息:
The Wizard detected the following problems when configuring the TableAdapter:
"OpenTime":
Details:
Generated SELECT statement.
The OVER SQL construct or statement is not supported
To add these components to your dataset, click Finish.
我猜它不喜欢这个查询...但是我不知道除了使用“OVER”函数之外还有什么其他方法可以完成查询......
答案 0 :(得分:8)
由于TableAdapter
向导的限制,您必须使用代码创建DataTable
。
DataTable dataTable;
using (SqlConnection sqlConn = new SqlConnection())
{
sqlConn.Open();
using (SqlDataAdapter sqlDataAdapter = new SqlDataAdapter())
using (sqlDataAdapter.SelectCommand = sqlConn.CreateCommand())
{
sqlDataAdapter.SelectCommand.CommandType = CommandType.Text;
sqlDataAdapter.SelectCommand.CommandText = '
SELECT * FROM (
SELECT timeclock.dtTimeIn, timeclock.dtTimeOut, employees.sfirstname,
RANK() OVER ( ORDER BY dtTimeIn) rk1, --earliest record gets 1
RANK() OVER (ORDER BY dtTimeOut DESC) rk2 --latest record gets 1
FROM TimeClock INNER JOIN
Employees ON TimeClock.lEmployeeID = Employees.lEmployeeID
WHERE (dtTimeIn > dateadd(day, datediff(day, 0, getdate())-1, 0)) AND (dtTimeOut < dateadd(day, datediff(day, 0, getdate()), 0)) AND (sDept IN ('1', '2', '3'))
) A
WHERE rk2=1';
sqlDataAdapter.Fill(dataTable);
}
}
在填充dataTable
后,只需将其分配给ReportViewer的DataSource
ReportDataSource rds = new ReportDataSource(dataTable.TableName, dataTable);
ReportViewer1.LocalReport.DataSources.Clear();
ReportViewer1.LocalReport.DataSources.Add(rds);
请注意,这些代码段的很大一部分未经测试。
答案 1 :(得分:6)
我认为不是使用拖放界面来创建tableAdapter,因为您的查询包含OVER SQL
结构(如错误所示),您必须创建tableAdapter并填充数据表在代码中。
答案 2 :(得分:3)
您可以从查询中创建一个视图,然后只需从视图中选择,这应该隐藏来自tableAdapter的OVER SQL。