mysql子查询，分组拼接GROUP_CONCAT函数

 

sql语句

select af.id id,af.aftersaleapplication_id aftersaleapplicationId,
		af.time time,af.sysuser_id sysuserId,af.status status,af.description description,
		af.last_type lastType,GROUP_CONCAT(w.name separator ',') role,w.nickname sysUser
	    from
		( select
		r.name name,su.id uid,su.nickname nickname
		from role r,sysuser su,sysuser_role sr where
		r.id=sr.role_id and
		sr.user_id = su.id and su.id in (select sysuser_id
		from aftersaleprocess)
		 ) w
        left join aftersaleprocess af
        on w.uid=af.sysuser_id WHERE af.aftersaleapplication_id=21 group by af.id
		order by time desc

查询结果如下

下面这个是查询总条数

select count(id) from (select af.id id,af.aftersaleapplication_id aftersaleapplicationId,
		af.time time,af.sysuser_id sysuserId,af.status status,af.description description,
		af.last_type lastType,GROUP_CONCAT(w.name separator ',') role,w.nickname sysUser
	    from
		( select
		r.name name,su.id uid,su.nickname nickname
		from role r,sysuser su,sysuser_role sr where
		r.id=sr.role_id and
		sr.user_id = su.id and su.id in (select sysuser_id
		from aftersaleprocess)
		 ) w
        left join aftersaleprocess af
        on w.uid=af.sysuser_id WHERE af.aftersaleapplication_id=21 group by af.id) sd