MySQL将多条数据合并成一条的完整示例

SELECT * FROM testgroup

SELECT id,GROUP_CONCAT(score) FROM testgroup GROUP BY id

SELECT id,GROUP_CONCAT(DISTINCT score) FROM testgroup GROUP BY id

SELECT id,GROUP_CONCAT(score ORDER BY score DESC) FROM testgroup GROUP BY id

SELECT id,GROUP_CONCAT(score SEPARATOR ';') FROM testgroup GROUP BY id 

select id,name,GROUP_CONCAT(CONCAT_WS(',',type,typename) SEPARATOR ',') typelinks from demo GROUP BY id,name;

DB::raw('GROUP_CONCAT(pp.sku SEPARATOR ",") sku')

$list = $this->ServiceModel->query()->where($where)
            ->groupBy('type')
            ->orderBy('update_time','desc')
            ->paginate($this->ServiceModel->pageSize, [
                'id',DB::raw('GROUP_CONCAT(CONCAT_WS(",",image,link) SEPARATOR ";") content'),
                'type','modified_user_id','status','create_time','update_time'
            ], "page", $page);
 
$total = $list->total();
$res = $list->items();