Re: SQL Performance (was Multiply Versus Divide)

[rob@xxxxxxxxx]

DEPENDS, YMMV, etc...

However, we had a gent here who did the time trials, and even though it 
was a single row fetch, the sql was faster.  Which rather stunned him. 
However he felt that the personal option of "...wherever it makes sense" 
overrode the performance.  That's why I think that clause is based on a 
personal bias, and not logic.

What would have been nice, is the record format level check independence. 
This will be quite important to us and we will be supporting several 
releases of a particular vendors package on the same partition.  And of 
course, they modified the length of key fields, etc.  This would make 
little utility programs like
select idesc into :itemdesc from iim where iprod=:WorkVar
work with a program in ROUTINES either of the following library lists:

CMP01DATA
CMP01PGM
ROUTINES
REL2PGMS

CMP02DATA
CMP02PGM
ROUTINES
REL1PGMS

pretending that RELxPGMS is the vendor supplied program library and CMP## 
is the various companies supported in this partition.

Rob Berendt
-- 
"They that can give up essential liberty to obtain a little temporary 
safety deserve neither liberty nor safety." 
Benjamin Franklin 





Rich Duzenbury <rduz-midrange@xxxxxxxxxxxxxxxxxxx>
Sent by: rpg400-l-bounces@xxxxxxxxxxxx
08/18/2003 11:15 AM
Please respond to RPG programming on the AS400 / iSeries
 
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        Subject:        Re: SQL Performance (was Multiply Versus Divide)



>Those same won't change from RPG file handling to SQL
>handling to shave a minute off that same process, even if they're the 
ones
>that ran the time trials and found the better performance did come from
>SQL.

Is SQL generally faster than RPG file handling?

If so, I'm intrigued.

However, I've seen so many complaints about the integration of SQL and RPG 

that I've been reluctant to give it a try.  Also, it seems that in the 
past 
that IBM was charging for the SQL tools, and thus many of my customers do 
not have it on their systems.  Has this also been rectified in the newer 
releases?

Regards,
Rich 

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