GROUP_CONCAT排序依据
GROUP_CONCAT排序依据
提问于 2011-12-26 03:38:54
我的a table是这样的：
+-----------+-------+------------+
| client_id | views | percentage |
+-----------+-------+------------+
| 1 | 6 | 20 |
| 1 | 4 | 55 |
| 1 | 9 | 56 |
| 1 | 2 | 67 |
| 1 | 7 | 80 |
| 1 | 5 | 66 |
| 1 | 3 | 33 |
| 1 | 8 | 34 |
| 1 | 1 | 52 |我试过group_concat
SELECT li.client_id, group_concat(li.views) AS views,
group_concat(li.percentage) FROM li GROUP BY client_id;
+-----------+-------------------+-----------------------------+
| client_id | views | group_concat(li.percentage) |
+-----------+-------------------+-----------------------------+
| 1 | 6,4,9,2,7,5,3,8,1 | 20,55,56,67,80,66,33,34,52 |
+-----------+-------------------+-----------------------------+但我想让视图井井有条，比如：
+-----------+-------------------+----------------------------+
| client_id | views | percentage |
+-----------+-------------------+----------------------------+
| 1 | 1,2,3,4,5,6,7,8,9 | 52,67,33,55,66,20,80,34,56 |
+-----------+-------------------+----------------------------+回答 4
Stack Overflow用户
回答已采纳
发布于 2011-12-26 03:51:09
您可以通过以下方式在GROUP_CONCAT函数中使用ORDER BY：
SELECT li.client_id, group_concat(li.percentage ORDER BY li.views ASC) AS views,
group_concat(li.percentage ORDER BY li.percentage ASC)
FROM li GROUP BY client_idStack Overflow用户
发布于 2011-12-26 03:44:51
group_concat支持自己的order by子句
http://mahmudahsan.wordpress.com/2008/08/27/mysql-the-group_concat-function/
因此，您应该能够编写：
SELECT li.clientid, group_concat(li.views order by views) AS views,
group_concat(li.percentage order by percentage)
FROM table_views GROUP BY client_idStack Overflow用户
发布于 2011-12-26 03:49:37
试一试
SELECT li.clientid, group_concat(li.views ORDER BY li.views) AS views,
group_concat(li.percentage ORDER BY li.percentage)
FROM table_views li
GROUP BY client_idhttp://dev.mysql.com/doc/refman/5.0/en/group-by-functions.html#function%5Fgroup-concat
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/8631210
复制相关文章
相似问题