mysql中的多行查询结果合并成一个
例如有2张表,一张资金类型表:
一张资金表,一个用户下,有积分、资金等多条信息,
将一个用户下的多条资金信息,合并到一条记录。
select uuid,group_concat(`atype` separator ';'),group_concat(`usable_money` separator ';') from member_account group by uuid;
phalcon:
$builder = $this->modelsManager->createBuilder() ->columns("uuid,group_concat(usable_money,''),status,open_time,create_time") ->from("MemberAccount"); if (!empty($keyword) && $type == 'uuid') { $builder->where("uuid=:uuid:", array("uuid" => $keyword)); } $builder->andWhere("delete_flg=0")->groupBy("uuid");
更多阅读:
SELECT GROUP_CONCAT(md.data1) FROM DATA md,contacts cc WHERE md.conskey=cc.id AND md.mimetype_id= 5 AND md.user_id=17: 利用函数:group_concat(),实现一个ID对应多个名称时,原本为多行数据,把名称合并成一行,如|1 | 10,20,20| 本文通过实例介绍了MySQL中的group_concat函数的使用方法,比如select group_concat(name) 。 MySQL中group_concat函数 完整的语法如下: group_concat([DISTINCT] 要连接的字段 [Order BY ASC/DESC 排序字段] [Separator '分隔符']) 基本查询 mysql> select * from aa; +------+------+ | id| name | +------+------+ |1 | 10| |1 | 20| |1 | 20| |2 | 20| |3 | 200 | |3 | 500 | +------+------+ 6 rows in set (0.00 sec) 以id分组,把name字段的值打印在一行,逗号分隔(默认) mysql> select id,group_concat(name) from aa group by id; +------+--------------------+ | id| group_concat(name) | +------+--------------------+ |1 | 10,20,20| |2 | 20 | |3 | 200,500| +------+--------------------+ 3 rows in set (0.00 sec) 以id分组,把name字段的值打印在一行,分号分隔 mysql> select id,group_concat(name separator ';') from aa group by id; +------+----------------------------------+ | id| group_concat(name separator ';') | +------+----------------------------------+ |1 | 10;20;20 | |2 | 20| |3 | 200;500 | +------+----------------------------------+ 3 rows in set (0.00 sec) 以id分组,把去冗余的name字段的值打印在一行, 逗号分隔 mysql> select id,group_concat(distinct name) from aa group by id; +------+-----------------------------+ | id| group_concat(distinct name) | +------+-----------------------------+ |1 | 10,20| |2 | 20 | |3 | 200,500 | +------+-----------------------------+ 3 rows in set (0.00 sec) 以id分组,把name字段的值打印在一行,逗号分隔,以name排倒序 mysql> select id,group_concat(name order by name desc) from aa group by id; +------+---------------------------------------+ | id| group_concat(name order by name desc) | +------+---------------------------------------+ |1 | 20,20,10 | |2 | 20| |3 | 500,200| +------+---------------------------------------+ 3 rows in set (0.00 sec)