CREATE [OR REPLACE] FUNCTION
Create or replace a Catalog routines. The
routine_definition is composed of
the usage of FUNCTION and nested statements. The name of the
routine must be fully qualified with catalog and schema location, unless the
default SQL routine storage catalog and
schema are configured. The connector used in
the catalog must support routine storage.
OR REPLACE clause causes the routine to be replaced if it already
exists rather than raising an error.
The following example creates the
meaning_of_life routine in the
schema of the
CREATE FUNCTION example.default.meaning_of_life()
If the default catalog and schema for routine storage is configured, you can use the following more compact syntax:
CREATE FUNCTION meaning_of_life() RETURNS bigint RETURN 42;
Further examples of varying complexity that cover usage of the
statement in combination with other statements are available in the SQL
routines examples documentation.