What is the equivalent of the null-safe equality operator <=> in SQLite?

问题

I need to determine what is the equivalent for SQLite of the <=> operator in MySQL.

Any idea?

回答1:

The IS and IS NOT operators work like = and != except when one or both of the operands are NULL. In this case, if both operands are NULL, then the IS operator evaluates to 1 (true) and the IS NOT operator evaluates to 0 (false)

http://www.sqlite.org/lang_expr.html#isisnot

回答2:

I have just found the "IS" operator, but not sure if it has exactly the same behaviour?

来源：https://stackoverflow.com/questions/9658125/what-is-the-equivalent-of-the-null-safe-equality-operator-in-sqlite