Create Function Statement - Sybase Adaptive Server Anywhere Reference

CREATE FUNCTION statement

Function
Syntax
Permissions
Side effects
See also
Description
Parameters
Use this statement to create a new function in the database.
CREATE FUNCTION [ owner .] function-name ( [ parameter , ... ] )
RETURNS data-type
{ EXTERNAL NAME library-call
| EXTERNAL NAME java-call LANGUAGE JAVA
| [ ON EXCEPTION RESUME ]
... compound-statement
}
parameter :
IN parameter-name data-type
library-call :
'[ operating-system :] function-name@library.dll ; ...'
operating-system :
Windows95 | WindowsNT | NetWare | UNIX
java-call:
'[ package-name .] class-name . method-name method-signature '
method-signature :
( [ field-descriptor , ... ] ) return-descriptor
field-descriptor | return-descriptor :
Z | B | S | I | J | F | D | C | V | [ descriptor | L class-name ;
Must have RESOURCE authority.
External functions, including Java functions, must have DBA authority.
Automatic commit.
"DROP statement" on page 505
"BEGIN statement" on page 404
"CREATE PROCEDURE statement" on page 453
"RETURN statement" on page 593
"Using Procedures, Triggers, and Batches" on page 435 of the book ASA
User's Guide
The CREATE FUNCTION statement creates a user-defined function in the
database. A function can be created for another user by specifying an owner
name. Subject to permissions, a user-defined function can be used in exactly
the same way as other non-aggregate functions.
CREATE FUNCTION clause
for database identifiers. They must have a valid SQL data type, and must be
prefixed by the keyword IN, signifying that the argument is an expression
that provides a value to the function.
Chapter 9 SQL Statements
Parameter names must conform to the rules
445