具有日期范围的多选sql查询
我有一个查询,我从一个员工花名册表中得到不同统计数据的总数具有日期范围的多选sql查询,sql,Sql,我有一个查询,我从一个员工花名册表中得到不同统计数据的总数 SELECT A.rempid AS EmpId, E.flname, A.rdo_total, B.grave_total, C.sundays, D.holidays FROM (SELECT rempid, Count(rshiftid)AS RDO_Total FROM rtmp1
SELECT A.rempid AS EmpId,
E.flname,
A.rdo_total,
B.grave_total,
C.sundays,
D.holidays
FROM (SELECT rempid,
Count(rshiftid)AS RDO_Total
FROM rtmp1
WHERE rshiftid = 2
GROUP BY rempid
HAVING Count(rshiftid) > 0) A,
(SELECT rempid,
Count(rshiftid)AS Grave_Total
FROM rtmp1
WHERE rshiftid = 6
GROUP BY rempid
HAVING Count(rshiftid) > 0)B,
(SELECT rempid,
Count(rshiftid) AS Sundays
FROM rtmp1
WHERE Datepart(dw, rdate) = 1
AND rshiftid > 2
GROUP BY rempid
HAVING Count(rshiftid) > 0)C,
(SELECT rempid,
Count(rshiftid) AS Holidays
FROM rtmp1
WHERE rdate IN (SELECT pubhdt
FROM pubhol)
AND rshiftid > 2
GROUP BY rempid
HAVING Count(rshiftid) > 0)D,
(SELECT empid,
[fname] + ' ' + [sname] AS flName
FROM remp1)E
WHERE A.rempid = B.rempid
AND A.rempid = E.empid
AND A.rempid = C.rempid
AND A.rempid = D.rempid
ORDER BY A.rempid
我想在其中添加一个日期范围,这样我可以在两个日期内查询数据库。rTmp1表有一个名为rDate的列。我想知道最好的方法是什么。我可以将其添加到存储过程中,并将变量添加到每个select查询中。或者是否有更好的方法在日期范围内运行查询。我认为只需添加一个额外的where子句项,类似于:
AND ( rDate > somedate AND rDate < someotherdate )
和(rDate>somedate和rDate
将日期范围添加到每个查询是最直接的解决方案
将其设置为存储过程始终可以通过查询完成,但与此特定情况无关
如果将表缩小到指定的日期范围所产生的记录数大大少于整个表,则可以选择将这些记录插入该表/结果集中,并在该表/结果集中运行现有查询
<>虽然我没有任何数据要测试,但是您可以考虑下面的查询,因为它更容易阅读,并且可以更好地执行。但是你必须自己检查结果,也许还要做一些调整
DECLARE @startDate date = '12/01/2012'
DECLARE @endDate date = DATEADD(MONTH, 1, @startDate)
SELECT
[e].[empid],
[e].[fname] + ' ' + [e].[sname] AS [flName],
SUM(CASE WHEN [t].[rshiftid] = 2 THEN 1 ELSE 0 END) AS [RDO_Total],
SUM(CASE WHEN [t].[rshiftid] = 6 THEN 1 ELSE 0 END) AS [Grave_Total],
SUM(CASE WHEN [t].[rshiftid] > 2 AND DATEPART(dw, [t].[rdate]) = 1 THEN 1 ELSE 0 END) AS [Sundays],
SUM(CASE WHEN [t].[rshiftid] > 2 AND [h].[pubhdt] IS NOT NULL THEN 1 ELSE 0 END) AS [Holidays]
FROM [remp1] [e]
INNER JOIN [rtmp1] [t] ON [e].[empid] = [t].[rempid]
LEFT JOIN [pubhol] [h] ON [t].[rdate] = [h].[pubhdt]
WHERE [t].[rdate] BETWEEN @startDate AND @endDate
GROUP BY
[e].[empid],
[e].[fname],
[e].[sname]
ORDER BY [empid] ASC
我可以将其添加到存储过程中,并将变量添加到每个select查询中
-是的,您当然可以@阿尔法辛不是很有建设性,是吗?@Jacco为什么不是?这是个不错的选择!顺便说一句,创建临时表在我听来像是杀戮过度,除非他需要再次设置相同的结果。@alfan对于误解您的评论,我深表歉意。我认为这是讽刺,因为我不知道sp如何改进解决方案。我的临时表建议来自这样一个事实:他正在查询表rtmp1 4次,并且他需要所有4次查询的日期范围。somedate
和someotherdate
是动态的!我打算把它变成变量。。。所以我可能应该添加@somedate和@someotherdate-重点是您只需要一个附加的and条件-而不是每个子选择中都有一个。谢谢Jacco,这正是我想要的,它还显示了值为0的员工,这也是我的查询中的一个问题。@AJ188很高兴回答了您的问题。感谢您将其标记为(首选)解决方案。现在继续回到原来的状态!;-)