# DROP TYPE statement in ksqlDB for Confluent Platform ## Synopsis ```sql DROP TYPE [IF EXISTS] AS ; ``` ## Description Removes a type alias from ksqlDB. This statement doesn’t fail if the type is in use in active queries or user-defined functions, because the DROP TYPE statement doesn’t track whether queries are using the type. This means that you can drop a type any time, and old queries continue to work. Also, old queries running with a dropped type don’t change if you register a new type with the same name. If the IF EXISTS clause is present, the statement doesn’t fail if the type doesn’t exist. ## Example ```sql DROP TYPE ADDRESS; ```