Re: Feed result set into a command

[Vern Hamberg <vhamberg@xxxxxxxxxxxxxxxxxxxxxxxxx>]

I see no one's answered this over the weekend!

It's generally best to have UDFs that do the least work possible - they are 
called for every row of a table. Admittedly, there may not be that many 
rows here, but each row has to wait for the UDF to finish, and if MAILTOOL 
were to have any kind of delay, the SQL statement could timeout on you. The 
same thing can happen while debugging, BTW.

I recommend putting the exception join into an RPG program (or REXX, if you 
want some cool fun and something that no one else in your shop could 
maintain). Then use a FETCH loop and call MAILTOOL for each - you can 
prototype QCMDEXC nicely - see the Redbook by Jon Paris, et al., on stuff 
you never knew you could do in RPG.

You could also do this in CL, using STRQMQRY with an outfile, then RCVF on 
that outfile -- anti-CLers need not respond  ;-)

HTH
Vern

At 08:51 AM 4/3/2004 -0500, you wrote:

> Greetings fellow Saturday-hackin' crazies.
>
> I need to do an exception join and process each record of the result set 
> with a command.
>
> To be a bit more detailed, I have a table of e-mail items and another of 
> statuses. I need to select the e-mail items that don't have a completion 
> status and feed them into Mr. Stone's MAILTOOL.
>
> I'd like to do this as "directly" as possible, so I was thinking 
> RUNSQLSTM, but is there a simple way to process the result set? Is this 
> where one would use a UDF? I'll need to do a bit more than just call the 
> command, such as logging my results.
>
> Regards,
> Zak Metz