如何将查询查询用作子查询

Question

我想将查询的查询用作子查询，但是出现语法错误：Encountered "(。这是我的查询（qHistoryData是我的查询对象）：

SELECT * FROM 
            (SELECT
                t2.*,
                ROW_NUMBER() OVER(
                PARTITION BY collectid
                ORDER BY
                     update_on DESC
                ) AS seqnum
                FROM
                    qHistoryData t2
                ) t
                WHERE
            t.seqnum = 1;

Answer 1

尝试一下？