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)

  

 

posted @ 2017-05-11 11:17  穆晟铭  阅读(2135)  评论(0编辑  收藏  举报