是否有可能在MySQL SQL中重用值？

Question

假设我有复杂的表达式，我希望重用它。

下面我必须写Complex Expression 2次：

SELECT "Complex Expression" AS V, "Complex Expression" LIKE "%lex%" W

我会写

SELECT "Complex Expression" AS V, V LIKE "%lex%" W

但MySQL发誓。

如何克服？

Answer 1

也许是这样的：

select * from (
   select "Complex Expression" AS V
   from table) AS subquery
where V like '%lex%'