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Years ago it was explained to me that if the physical has keys, it's
forced to use the older database engine. Unless something has changed,
I believe that's still true today.
Gavin.
On 10/13/2023 8:47 AM, Greg Wilburn wrote:
I've been using Index Advisor and Run Sql Scripts "Run and Explain" to analyze some of our queries. I'm looking for increased performance.
I have a large file/table OEBOXCBX with a logical files defined with the following keys:
LF #1: BXCOM#, BXORD#, BXREL#, BXBOX#, BXPRT#
LF #2: BXCOM#, BXORD#, BXREL#, BXBXNO, BXPRT#
I ran an SQL statement over a complex SQL view that contains this file. RSS Run and Explain recommended the following index:
CREATE INDEX ASTHHOBJ/OEBOXCBX_IDX
ON ASTHHOBJ/OEBOXCBX (BXCOM# ASC, BXORD# ASC, BXREL# ASC) UNIT ANY KEEP IN MEMORY NO;
My question is why the SQE wouldn't use one of the existing logical files as an index? As an RPG guy, this makes no sense to me.
TIA,
Greg
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