Question

我有一个Sales表，其中包含

等字段

   upgrade[yes/no] 
   date upgraded[datetime] 
   user[username]

我想运行一个查询并每月和每年显示升级，例如我想生成一个类似2012年1月的报告[总升级30次，user1进行10次升级，用户2进行15次升级，类似用户3进行了5次升级。同样，我也希望每年都能实现这一目标。

Answer 1

SELECT USERNAME,
CONVERT(CHAR(7), DATE_FIELD,120) AS MONTH,
SUM(CASE WHEN UPGRADE = 'YES' THEN 1 ELSE 0 END) UPGRADED
FROM TABLE
GROUP BY USERNAME, CONVERT(CHAR(7), DATE_FIELD,120)

Answer 2

使用SSRS，您可以非常轻松地生成多个分组，并一目了然地显示所有这些信息。

在vanilla T-SQL查询中，您可以这样做：

SELECT
    YEAR(s.[date upgraded]),
    s.[user],
    COUNT(*) AS [total upgrades]
FROM [Sales] s
WHERE s.[upgrade] = 'yes'
GROUP BY s.[user], YEAR(s.[date upgraded]) WITH ROLLUP
ORDER BY YEAR(s.[date upgraded]), s.[user]

SELECT
    MONTH(s.[date upgraded]),
    s.[user],
    COUNT(*) AS [total upgrades]
FROM [Sales] s
WHERE s.[upgrade] = 'yes'
GROUP BY s.[user], MONTH(s.[date upgraded]) WITH ROLLUP
ORDER BY MONTH(s.[date upgraded]), s.[user]

每月/每年报告的SQL查询

2 个答案: