结果：
【MySQL】MySQL的group_concat使用例子
标签：
【MySQL】MySQL的group_concat使用例子
t.name, group_concat(distinct t.role order by t.sort asc separator ‘;‘) from
(
select ‘Nick‘ as name, ‘coder‘ as role, 1 as sort
union all
select ‘Nick‘ as name, ‘admin‘ as role, 3 as sort
union all
select ‘Nick‘ as name, ‘admin‘ as role, 2 as sort
union all
select ‘Viki‘ as name, ‘coder‘ as role, 1 as sort
union all
select ‘Viki‘ as name, ‘admin‘ as role, 2 as sort
union all
select ‘Viki‘ as name, ‘player‘ as role, 3 as sort
union all
select ‘Darren‘ as name, ‘admin‘ as role, 2 as sort
union all
select ‘Darren‘ as name, ‘player‘ as role, 1 as sort
) t
group by t.name;
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