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Mysql 实现 Rownum() 排序后根据条件获取名次

时间:2021-07-01 10:21:17 帮助过:5人阅读

TABLE IF EXISTS `data`; CREATE TABLE `data` ( `dates` varchar(255) CHARACTER SET utf8 DEFAULT NULL, `id` int(11) DEFAULT NULL, `result` varchar(255) CHARACTER SET utf8 DEFAULT NULL ); INSERT INTO `data` (`dates`, `id`, `result`) VALUES (‘2015109101‘, 1, ‘胜‘); INSERT INTO `data` (`dates`, `id`, `result`) VALUES (‘2015110101‘, 2, ‘负‘); INSERT INTO `data` (`dates`, `id`, `result`) VALUES (‘2015109101‘, 3, ‘负‘); INSERT INTO `data` (`dates`, `id`, `result`) VALUES (‘2015109101‘, 4, ‘胜‘); INSERT INTO `data` (`dates`, `id`, `result`) VALUES (‘2015110101‘, 5, ‘胜‘); INSERT INTO `data` (`dates`, `id`, `result`) VALUES (‘2015109101‘, 6, ‘负‘); INSERT INTO `data` (`dates`, `id`, `result`) VALUES (‘2015109101‘, 7, ‘胜‘); INSERT INTO `data` (`dates`, `id`, `result`) VALUES (‘2015110101‘, 8, ‘负‘);

排序

select @rownum:=@rownum+1 AS rownum,id,dates 
from
`data`,(SELECT @rownum:=0) r 
ORDER BY dates;

结果

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条件查询

SELECT rownum,id
from
    (select @rownum:=@rownum+1 AS rownum,id,dates
     from
    `data`,(SELECT @rownum:=0) r 
    ORDER BY dates)b 
    WHERE id =2;

结果

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写在最后的话

获取你有更好的方法在mysql中来实现Rownum(),欢迎不吝赐教。

Mysql 实现 Rownum() 排序后根据条件获取名次

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