如何按列，日期对结果集进行分组并限制返回的行数？

Question

看到我的另一个问题，因为这个很糟糕：

How can I group on the SAME table, order by date and limit the number of rows returned?

Answer 1

SELECT  id_field, fe.*
FROM    User_Field uf
CROSS APPLY
        (
        SELECT  TOP (@limit)
                value, dateUsed
        FROM    Field_E2PValue fe
        JOIN    E2P_Value e
        ON      e.id = fe.id_e2pvalue
        WHERE   id_field = uf.id_field
        ORDER BY
                date_used DESC
        ) fe
WHERE   id_user = @myuser