CREATE FUNCTION#
Synopsis#
CREATE [OR REPLACE] FUNCTION
routine_definition
Description#
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.
The optional OR REPLACE
clause causes the routine to be replaced if it already
exists rather than raising an error.
Examples#
The following example creates the meaning_of_life
routine in the default
schema of the example
catalog:
CREATE FUNCTION example.default.meaning_of_life()
RETURNS bigint
BEGIN
RETURN 42;
END;
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 FUNCTION
statement in combination with other statements are available in the SQL
routines examples documentation.