SELECT (`aaa`/`bbb`) AS cccFROM testWHERE ccc > 1 搜寻是没问题,但是加上WHERE条件会说[Err] 1054 - Unknown column 'ccc' in 'where clause',请问要怎么修正? 回复讨论(解决方案) SELECT (`aaa`/`bbb`) AS cccFROM testWHERE `aaa`/`bbb` > 1或 SELECT (`aaa`/`bbb`) AS cccFROM testHAVING ccc > 1 注意:`aaa`/`bbb` 不会被重复计算