Question

我有以下查询，它结合了来自2个单独表的计数。我希望能够根据日期范围对其进行过滤。这是我正在使用的查询：

SELECT combined.name, Count(combined.id) AS CountOfid
FROM (select ecmreq as name, entryid as id from log
    union all
    select comauthor, comid from elcom
 )  AS combined
GROUP BY combined.name;

如果log有一个名为logdate的日期字段，而elcom有一个名为comdate的字段，我该如何设置它以获得介于08/21/2017和08/28/2017之间的所有计数？

Answer 1

您只需将其包含在子查询的WHERE中即可。

SELECT combined.name, Count(combined.id) AS CountOfid
FROM (select ecmreq as name, entryid as id from log WHERE logdate >= '2017-08-21' AND logdate <= '2017-08-28'
    union all
    select comauthor, comid from elcom WHERE comdate >= '2017-08-21' AND comdate <= '2017-08-28'
 )  AS combined
GROUP BY combined.name;

Answer 2

SELECT combined.name, Count(combined.id) AS CountOfid
FROM (select ecmreq as name, entryid as id, logdate as recdate from log
    union all
    select comauthor, comid, comdate as recdate from elcom
 )  AS combined
where combined.recdate between '08/21/2017' and '08/28/2017'
GROUP BY combined.name;

Answer 3

时

WHERE logdate＆gt; =＆＃39; 2017-08-21＆＃39; AND logdate＆lt; =＆＃39; 2017-08-28＆＃39;

或多或少你正在寻找什么？

当然，你可以用同样的方式检查elcom，如果你不想包含一个或另一个实际的边界日期，你可以调整比较。

如何添加日期范围过滤器来计算查询

3 个答案: