Difference Between NOT IN vs NOT EXISTS Operator
The following are some of the differences between NOT IN and NOT EXISTS:
NOT IN |
NOT EXISTS |
---|---|
NOT IN cannot compare NULL values |
NOT EXISTS can handle NULL values |
Queries containing NOT IN perform nested full table scan |
NOT EXISTS can use indexes. |
NOT IN vs NOT EXISTS in SQLite
When querying a database in SQLite, there are situations where you need to filter out rows based on conditions that involve another set of values or a subquery. This is where the NOT IN and NOT EXISTS operators come into play.
While both operators achieve similar results, they do so in different ways and have different performance characteristics. In this article, we will see the what is NOT IN and NOT EXISTS operator along with their examples and their differences too.