函数语法:
group_concat([DISTINCT] 要连接的字段 [ORDER BY 排序字段 ASC/DESC] [SEPARATOR ‘分隔符‘])
下面举例说明:
select * from goods;
以id分组,把price字段的值在同一行打印出来,逗号分隔(默认)
select id, group_concat(price) from goods group by id;
以id分组,把price字段的值在一行打印出来,分红分隔
SELECT id, group_concat(price separator ‘;‘) from goods group by id;
以id分组,把去除重复冗余的price字段的值打印在一行,以逗号分隔
select id, group_concat(distinct price) from goods group by id;
以id分组,把price字段的值打印在一行,逗号分隔,按照price倒序排列
select id,group_concat(price order by price desc) from goods group by id;
时间： 2024-08-06 16:56:21