Re: Creating UDFs -- RPG400-L

You have two different libraries essentially. Where the definition of the
UDF is stored and where the service program is at. When you do the CREATE
FUNCTION you give it a library, say QGPL and when you specify the service
program you either give it a library where the service program is or *LIBL.

The reason they do this is so that you could have two different definitions
in two libraries. Say, one test and one production but it gets confusing.
If you don't give it a library name, it searches the database and finds the
first one. If you are calling a UDF from outside the i you need to qualify
the UDF with the library. Inside the i, normally you do not.

Go to www.think400.dk/downloads.htm and look for iDate. This is a UDF to
converts iSeries type dates (Numeric, Alpha) to true date data type..There
is a writeup that talks about all this.

On Fri, Aug 2, 2013 at 8:39 AM, Gary Thompson <gthompson@xxxxxxxxxxx> wrote:

Robert,
I'm not sure, but the following SQL may help answer your question.
This is a statement we have used to track local UDF.

Start of sql-----------------------------------------
SELECT CAST(routine_name AS CHAR(15)) AS Name,
CAST(routine_schema AS CHAR(10)) AS Library,
routine_type AS Type,
CAST(routine_definer AS CHAR(10)) AS Created_By,
function_origin AS Origin,
routine_definition AS Source_Code
FROM qsys2/sysroutines
WHERE routine_definer NOT IN ('QSYS', 'QLPINSTALL', 'QDIRSRV')
AND ( ( routine_type = 'FUNCTION' ) AND
(function_origin NOT IN ('B')) OR
(routine_type = 'PROCEDURE')
)
End of sql -----------------------------------------

Output looks something like:

....+....1....+....2....+....3....+....4....+....5....+....6....+....7.
NAME LIBRARY TYPE CREATED_BY ORIGIN SOURCE_CODE
VRSP900 BASSD PROCEDURE S4 -
QZDGDBLL QIWS PROCEDURE T9 -
BUDSAPSP QGPL PROCEDURE S7 -
RPSP900 QGPL PROCEDURE S4 -
QZDGDNAV QIWS PROCEDURE S9 -
QZDGDTOQ QIWS PROCEDURE GTHOMPSON -
QZDGDSPF QIWS PROCEDURE SY -
CURCYMD SWIRE FUNCTION GTHOMPSON E -
QQQDBVE QIWS PROCEDURE GTHOMPSON -
QZDGDBPM QIWS PROCEDURE GTHOMPSON -
EDITCODE SWIRE FUNCTION GTHOMPSON E -
DAYDIFCYMD SWIRE FUNCTION GTHOMPSON E -

-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx [mailto:rpg400-l-bounces@xxxxxxxxxxxx]
On Behalf Of Robert Mullis
Sent: Friday, August 02, 2013 8:12 AM
To: RPG programming on the IBM i (AS/400 and iSeries)
Subject: Creating UDFs

I am trying to create my first UDF to use in embedded SQL in an RPGLE
program. I have created the procedure in a service program with no
problem, but I have a question about the UDF. When the UDF is created,
what library is it created in? Also, if the service program that the UDF
uses is moved to another library, what happens to the UDF? Does it move to
the new library with it?

Thanks,

Robert J. Mullis

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