sql-server-ce - SQL Server CE 替换子选择

Question

我有这个 SQL 语句：

SELECT *
FROM history
WHERE (fk_person = 2119) AND (action = 2) AND (date =
                                                      (SELECT MAX(day) AS maxDay
                                                       FROM history AS hist
                                                       WHERE (fk_person = 2119)))

据我所知 SQL Server CE 不支持子查询。

我该如何更换它？

感谢您的回答！

Answer 1

尝试

SELECT h1.*
FROM history h1
inner join FROM history h2 on h1.fk_person = h2.fk_person
WHERE h1.fk_person = 2119
AND h1.action = 2
AND h1.day = MAX(h2.day)

Answer 2

我不确定有多少记录相同MAX(day)，但如果您只需要一个，以下可能对您有用：

SELECT TOP (1) *
FROM history
WHERE (fk_person = 2119)
AND (action = 2) 
ORDER BY day DESC