为什么你需要把你自己创建的(例如列select 1 as "number"后)HAVING,而不是WHERE在MySQL？
select 1 as "number"
HAVING
WHERE
是否有任何缺点而不是做WHERE 1(编写整个定义而不是列名)？
WHERE 1
mysql sql where-clause having-clause
having-clause ×1
mysql ×1
sql ×1
where-clause ×1