mysql group_concat and laravel group_concat使用
1.说明
group_concat 只能当做字段使用
需要操作多个字段时 需要使用连接符函数 concat 或者concat_ws
select a.id,a.type, a.time,a.total,a.amount,a.number,a.examine,b.time as btime,b.info,GROUP_CONCAT(DISTINCT concat(a.id,':',b.time,':',b.info) SEPARATOR '|')
from sells as a
left join records as b
on a.id=b.form where b.type='sell';laravel中使用
$cus_voucher = DB::table('cus_voucher')->where('cus_id',$id)->groupBy('vid')->select('vid','valid_period','vname',DB::raw('group_concat(sname,"|",times) as sometitle'))->get();