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问题描述
在其他问题中，此人问如何从联接中删除.
我的问题:标准SQL有多少?
My question: How much of this is standard SQL? On which databases would this actually work (most notably for me would be Oracle, MySQL and SQLServer)?
推荐答案
DELETE ... FROM ..不属于ANSI标准，也不属于UPDATE ... FROM....这包括任何联接语法，因为联接只能用FROM来指定.
DELETE ... FROM .. Is not part of the ANSI standards, nor UPDATE ... FROM ... for that matter. This includes any join syntax, since the join can only be specified with a FROM.
所有供应商都以一种或另一种形式实现此目的.
All vendors implement this though in one form or another.
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