SQL DELETE最高值

Question

我有一张桌子，上面有一个房间列表，每个房间都分配了一个房间号码。我想删除最高的房间号码：

DELETE FROM rooms WHERE roomNb = (SELECT max(roomNb) FROM rooms LIMIT 1)

我希望这可行，但当我尝试在PHP中执行此查询时，我得到了这个mysqli_error：

string(64) "You can't specify target table 'rooms' for update in FROM clause" 

Answer 1

尝试使用join，

DELETE a
FROM   rooms a
       INNER JOIN (SELECT max(roomNb) maxroom FROM rooms) b
          ON a.roomNb = b.maxroom

Answer 2

我没有看到使用子查询/连接的原因...为什么不在ORDER BY子句之后将行从表顶移开？

DELETE FROM rooms ORDER BY roomNb DESC LIMIT 1