Nathan,
By native I don't mean embedded SQL. I mean RLA via RPG. This is the way the project started and it performed well for the dozen SQL statements that were converted to RPG but we want to avoid having to convert.
Actually, I run each SQL statement from RPGLE via embedded SQL using an EXECUTE IMMEDIATE statement.
We already run this RPGLE via several server jobs waiting on a *DTAQ but that still takes too long.
I don't know how the SQL Server interface operates but if it performs then I may attempt sending the work file request there from i5.
The best I've managed so far on i5 is it reduce it from 60 secs to under 30 by submitting it to a batch job that runs a C program I created to employ the multi-threading API provided by IBM (beats using multiple server threads)
Peter.
-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Nathan Andelin
Sent: Thursday, 30 May 2013 9:39 a.m.
To: Midrange Systems Technical Discussion
Subject: Re: Performance question and SQL SERVER
Hello Peter,
It is problematic to convert these 300 to native RPGLE which I know
would perform well.
What do you mean by native RPGLE? Using RLA? Using embedded SQL?
However, if the same transaction is repeated then the same result can
be returned in about 5 seconds.
What if the Job running the SQL were left running? Say waiting for a request to be placed on a queue?
he can easily create a script that runs all 300 statements on
SQL server in just a few second with no performance problems.
Why is that?
Not sure. Could he be using an asynchronous interface, which returns quickly, even though SQL Server continues to crunch in the background? I used that trick in the past.
-Nathan
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