Question

我之前从未尝试过将变量值传递给子查询，而且我似乎错了。我没有收到任何错误，但我也没有得到任何结果，而如果我硬编码startdate，enddate＆amp;的值。角色进入子查询，它运行正常。

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我的不好，我发布了我正在玩的早期测试脚本，其确实充满了错误，对不起。以下是我正在使用的实际代码：

DECLARE @Role varchar,
    @StartDate datetime,
    @Enddate datetime;

SET     @Role = 'Volunteer';
SET     @StartDate = DATEADD(d, -100, getdate());
SET     @Enddate = getdate();

SELECT rolename, Category, [1] as [1 Day],[2] as [2 Days],[3] as [3 Days],[4] as [4 Days],[5] as [5 Days],[6] as [6 Days],[7] as [7 Days]  FROM
(SELECT    CriminalHistoryID, vps.RoleName, 'Rec2PreClr' as Category,
        DATEDIFF(d, chc.ReceiveDate, chc.PreClrDate) as DaysDif
  FROM  dbo.v_PersonStatus vps
              INNER JOIN dbo.CriminalHistoryCheck chc
                    ON vps.PersonID = chc.PersonID
  WHERE chc.ReceiveDate BETWEEN @StartDate AND @Enddate AND vps.rolename = @Role and DATEDIFF(d, chc.ReceiveDate, chc.PreClrDate) BETWEEN 0 and 7
  UNION
  SELECT      CriminalHistoryID, vps.RoleName, 'PreClr2Clr' as Category,
              DATEDIFF(d, chc.PreClrDate, chc.FinalDate) as DaysDif
  FROM  dbo.v_PersonStatus vps
              INNER JOIN dbo.CriminalHistoryCheck chc
                    ON vps.PersonID = chc.PersonID
  WHERE chc.ReceiveDate BETWEEN @StartDate AND @Enddate AND vps.rolename = @Role AND DATEDIFF(d, chc.PreClrDate, chc.FinalDate) BETWEEN 0 and 7
  UNION
  SELECT      CriminalHistoryID, vps.RoleName, 'Rec2Clr' as Category,
              DATEDIFF(d, chc.ReceiveDate, FinalDate) as DaysDif
  FROM  dbo.v_PersonStatus vps
              INNER JOIN dbo.CriminalHistoryCheck chc
                    ON vps.PersonID = chc.PersonID
  WHERE chc.ReceiveDate BETWEEN @StartDate AND @Enddate AND vps.rolename = @Role AND DATEDIFF(d, chc.ReceiveDate, FinalDate) BETWEEN 0 and 7
  ) UNIONqry
PIVOT
(count(CriminalHistoryID) for DaysDif in ([1],[2],[3],[4],[5],[6],[7])) pvt
Order by RoleName, Category

@Startdate，@ Endate＆amp;的值@Role似乎没有进入子查询。我是否需要做一些事情来告诉潜水员在盒子外面看？

Answer 1

两个问题：

您没有为volStatus
应该是@volstatus而不是@ volstatus - 没有空格

所以，改变：

WHERE chc.ReceiveDate BETWEEN @StartDate AND @Enddate AND vps.rolename = @ VolStatus and DATEDIFF(d, chc.ReceiveDate, chc.PreClrDate) BETWEEN 0 and 7

要：

WHERE chc.ReceiveDate BETWEEN @StartDate AND @Enddate AND vps.rolename = @VolStatus and DATEDIFF(d, chc.ReceiveDate, chc.PreClrDate) BETWEEN 0 and 7

子查询内部的变量未接收变量值

1 个答案: