MySQL存储过程获取记录排名（一般用于投票系统）

下面是脚本之家 jb51.cc 通过网络收集整理的代码片段。

脚本之家小编现在分享给大家，也给大家做个参考。

CREATE PROCEDURE `get_rank`(IN `school` INT)
BEGIN
SET @votes = (SELECT COUNT(tcl_vote.vote_id) AS counts FROM tcl_works LEFT JOIN tcl_vote ON tcl_vote.works_id = tcl_works.works_id WHERE tcl_works.school_id=school);
SET @gt = (
SELECT
COUNT(*)
FROM
(
SELECT
tcl_works.school_id,COUNT(tcl_vote.vote_id) AS votes
FROM
tcl_works
LEFT JOIN tcl_vote ON tcl_vote.works_id = tcl_works.works_id
GROUP BY
tcl_works.school_id
HAVING
votes > @votes
ORDER BY
votes DESC
)
AS xxx
);
IF @gt = 0
THEN
SET @rank = 1;
SELECT @rank AS rank;
ELSE
SET @lt = (
SELECT
COUNT(*)
FROM
(
SELECT
tcl_works.school_id,COUNT(tcl_vote.vote_id) AS votes
FROM
tcl_works
LEFT JOIN tcl_vote ON tcl_vote.works_id = tcl_works.works_id
GROUP BY
tcl_works.school_id
HAVING
votes < @votes
ORDER BY
votes DESC
)
AS xxx
);
IF @lt = 0
THEN
SET @rank =(SELECT COUNT(*) FROM tcl_school LIMIT 1);
SELECT @rank AS rank;
ELSE
SET @rank = (@[emailprotected]);
SELECT @rank AS rank;
END IF;
END IF;
END;

call get_rank(1)

以上是脚本之家(jb51.cc)为你收集整理的全部代码内容，希望文章能够帮你解决所遇到的程序开发问题。

如果觉得脚本之家网站内容还不错，欢迎将脚本之家网站推荐给程序员好友。

（编辑：安卓应用网）

【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容!