有人可以告诉我,我们如何比较一个表列与NULL使用浮动的提升嵌入。光滑的比较表列与空
我想在mysql中实现什么:
select * from Users where email = '<some_email_addr>' and (removed = NULL OR removed <= 1)
它给我的错误在x.removed ===空当我尝试:
val q = for {
x <- Users
if x.email === email && (x.removed === null || x.removed <= 1)
} yield x.removed
感谢
伟大的工作:) – Sameerel
'isNull'和'isNotNull'已被弃用,并由'isEmpty'和'isDefined'取代。来源:[光滑文档](http://slick.typesafe.com/doc/2.1.0-RC2/upgrade.html) –