functionName

A functionName represents a Java function. To create a function, use the CREATE FUNCTION statement.

Syntax

[ schemaName. ] SQL92Identifier

You can qualify a function name with a schemaName. If a qualified function name is specified, the schema name cannot begin with SYS.

Example

-- Declaring a scalar function
CREATE FUNCTION TO_DEGREES
( RADIANS DOUBLE )
RETURNS DOUBLE
PARAMETER STYLE JAVA
NO SQL LANGUAGE JAVA
EXTERNAL NAME 'java.lang.Math.toDegrees';