Question

我有一个表'name'，'status' - 失败或成功，'count'-1到100.我想以这样的方式订购它，只有'fail'的名字应该一起显示在上面，然后相同的名字与失败和成功在一起，然后名称只有成功。我们可以用sql查询语言吗？谢谢。

Answer 1

好的，这应该适用于大多数RDBMS：

SELECT A.*
FROM YourTable A
INNER JOIN (SELECT  name, 
                    COUNT(DISTINCT status) StatusCount,
                    MIN(status) MinStatus
            FROM YourTable
            GROUP BY name) B
    ON A.name = B.name
ORDER BY CASE WHEN StatusCount = 1 AND MinStatus = 'fail' THEN 1
         WHEN StatusCount = 2 THEN 2 
         ELSE 3 END, A.name, A.status

Answer 2

如果是MySQL

select *, 0 as o
from t
union all
select *, 1 as o
from t
order by
    o = 1 and status != 'fail', o != 1, status = fail

SQL顺序由多个条件组成

2 个答案: