Re: I think I need multi-threading but I'm only on V5R4M5

Hi, Bryce:

RPG IV is not particularly well-suited to writing multi-threaded applications.

Use a dynamic SQL SELECT -- build up the where clause based on which of the possible search fields are supplied.

Or, if you cannot use SQL, use OPNQRYF using the QRYSLT parameter to specify the dynamic search criteria.

Mark S. Waterbury

> On 10/5/2010 1:43 PM, Bryce Martin wrote:

Well I have come upon a project where I think I need multi-threading in
RPGLE but I am only on V5R4M5.

Here is the scenario...
We have a file that we need to search. There are 7 fields in each record
that can be searched. As few as 1 or as many as all 7 can be specified.
What I've done is broken out these fields into Key,Value pairs for faster
searching. By keeping each searchable field as a seperate table ask the
Key and having the key field from the main file as the Value. I will then
return all matching values to the main search program.

My basic structure would be something like....

if parm1<> '';
searchfield1()
endif;

if parm2<> '';
searchfield2();
endif;

....

if parm7<> '';
searchfield7();
endif;


Since each of these searches are on different files I want to be able to
do them in parallel to speed it up. Is there a way to do this without
doing a sbmjob. I can't do the sbmjob since I need to gather the results
of each searchfield procedure and then compile a master list.

Any idea will be appreciated.

Thanks
Bryce Martin
Programmer/Analyst I
570-546-4777