In a function, you would RETURN(-1). In a subroutine, you would pass back a variable as one of the parameters.
RESULT = '';MY.VAR='SOMETHING' CALL MY.SUB(RESULT, MY.VAR) IF RESULT = @TRUE ...... Whatever . . SUBROUTINE MY.SUB(RESULT, MY.VAR) [EMAIL PROTECTED] IF MY.VAR = 'SOMETHING' THEN [EMAIL PROTECTED] RETURN END Im not positive about this (please check), but I always considered subroutines as being 'I-Type' capable and functions not. So if you create a subroutine, you can also use it as an 'I-Type' in a dictionary. If you create a function you cannot. This is the reason I have always used subroutines. We find them very handy in simple selects and reports as well as being able to be called in programs - a multi-tasker. As far as being expensive, I guess that is relative. For us it is not. Anthony -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Wendy Smoak Sent: Wednesday, June 22, 2005 2:47 PM To: u2-users@listserver.u2ug.org Subject: [U2] Custom Functions I was just looking at the documentation for FUNCTION after hearing a couple of people make reference to custom functions. How did we not know about this?! (Has this always been possible, or was it added recently?) We consider subroutines fairly "expensive" in terms of system resources, and tend to just use GOSUB within most programs. But coming from the Java/OO world, the global variables are *killing* me. And I'm partial to the nested parenthesis notation as well. Does anyone have any best practice advice or gotchas to impart? We have a need to find the "Ultimate Parent" in a tree of corporation/parent/subsidiary relationships. In particular, I might find a case where there is more than one "Ultimate Parent" and I need to signify an error. Do I return -1, or set @SYSTEM.RETURN.CODE to a positive number? Thanks, -- Wendy Smoak Applications Systems Analyst, Sr. Arizona State University, PA, IRM ------- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/ ------- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
