立即学习:https://edu.youkuaiyun.com/course/play/27328/370699?utm_source=blogtoedu
group_concat
应用场景:配合group by,将某一列的按指定的分隔符拼接
group_concat([distinct] column_name [order by column_name asc/desc] [separator '分隔符']
立即学习:https://edu.youkuaiyun.com/course/play/27328/370699?utm_source=blogtoedu
group_concat
应用场景:配合group by,将某一列的按指定的分隔符拼接
group_concat([distinct] column_name [order by column_name asc/desc] [separator '分隔符']