Question

这就是我写的：

$sql = "select * from tp_picture where (catid in(13,14,15,20) order by find_in_set(catid,'13,14,15,20')) order by listorder ASC";

首先，按find_in_set排序（catid，'13，14,15,20'））

接下来，按tp_picture listorder字段排序。

谁能告诉我正确的SQL，思考。

Answer 1

如果我理解你想要的东西，那就试着这样做

select * 
  from tp_picture 
 where catid in(13, 14, 15, 20) 
 order by (find_in_set(catid, 13, 14, 15, 20) > 0) DESC, listorder

Answer 2

试试这个。

SELECT * FROM TP_PICTURE 
WHERE CAT_ID IN (13,14,15,20) AS 'CAT_ID'
ORDER BY CAT_ID, LISTORDER ASC

Answer 3

Please, follow below syntex :
  select <column_name1, column_name2, ... >
       from table_name where <condition>
           order by <column_name1,...>
------------------------------------------------------------
    $sql = "select * from tp_picture 
    where catid in(13,14,15,20) 
    order by  catid , listorder ASC";

Answer 4

$sql = "select 
               *
        from 
                tp_picture 
        where 
                (catid in(13,14,15,20)) 
        order by 
                catid,listorder ASC";

试试这个

谁能告诉我如何编写SQL

4 个答案: