RE: Index advisor advising index on primary key

["Wilt, Charles" <WiltC@xxxxxxxxxx>]

Jeff,

IIRC, this will sometimes happen with a DDS defined file because an SQL index has more statistical
information that the query engine can use.

But you say your file is a DDL defined table....so I don't know....

Is the suggested index the exact primary key?  How many fields in the PK?

Charles Wilt 
Software Engineer
CINTAS Corporation - IT 92B
513.701.1307

wiltc@xxxxxxxxxx


> -----Original Message-----
> From: midrange-l-bounces@xxxxxxxxxxxx [mailto:midrange-l-
> bounces@xxxxxxxxxxxx] On Behalf Of Jeff Crosby
> Sent: Friday, April 11, 2008 8:30 AM
> To: Midrange Systems Technical Discussion
> Subject: Index advisor advising index on primary key
>
> At our LUG meeting earlier this week a fellow midranger (Thanks Rob!)
> gave a presentation on things you might not have known about on the i.
> One of them was iNav index advisor, which I did not know about.
>
> I cleaned out the advice since much of it was old so it would start fresh.
>
> On our item master file, it is advising that I create an index on field
> ITNBR.  This file is an SQL table created via DDL (not DDS) and ITNBR is
> the primary key.  Does this advice make sense?  Why would it advise an
> index on the primary key?
>
> Thanks.
>
> --
> Jeff Crosby
> UniPro Foodservice/Dilgard
> 260-422-7531
> Opinions expressed are my own and not necessarily those of my company.
> Unless I say so.
>
>
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