sql 找到在SQL中PARTITION的用法，分组取某一条记录

Posted 2021-05-14

SELECT RowId = ROW_NUMBER() OVER(PARTITION BY m.SectionId ORDER BY m.ProbMax DESC),m.*
FROM   Match m
        LEFT JOIN Section s
            ON  s.SectionId = m.SectionId
WHERE  m.IsValid = 1
        AND s.IsValid = 1

SELECT *
FROM   StorageOuts so1
       INNER JOIN (
                SELECT so.ProductId,
                       MAX(so.CreatedOn)  AS CreatedOn
                FROM   StorageOuts           so
                GROUP BY
                       so.ProductId
            ) so2
            ON  so1.ProductId = so2.ProductId
            AND so1.CreatedOn = so2.CreatedOn