Re: SQL and UNION: why do some UNIONs significantly inflate the processing time, while others don't? -- MIDRANGE-L

Subject: Re: SQL and UNION: why do some UNIONs significantly inflate the processing time, while others don't?
From: Charles Wilt <charles.wilt@xxxxxxxxx>
Date: Fri, 21 May 2021 10:25:31 -0600
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On Fri, May 21, 2021 at 9:33 AM James H. H. Lampert <
jamesl@xxxxxxxxxxxxxxxxx> wrote:

I actually tried UNION ALL, and it had little effect.

And as to Visual Explain (it's been so long I'd forgotten what it was
called!), well, the last time we were an ACS shop, it was still called
"PC Support."

You should have ACS. Most of it doesn't require a license.
I believe only 5250 and data transfer portions require a license.

Charles

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Follow-Ups:

Re: SQL and UNION: why do some UNIONs significantly inflate the processing time, while others don't? , James H. H. Lampert
Re: SQL and UNION: why do some UNIONs significantly inflate the processing time, while others don't? , Vern Hamberg

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