Comments on: DYNSLT Omit

By: TomLiotta

TomLiotta — Wed, 08 Aug 2012 00:23:15 +0000

This is for a JLF…using one instead of an MQT…

How did a MQT get involved in this? Why would you want a MQT? Why not a simple view (supported by appropriate indexes)?
Tom

By: bogeybetsy

bogeybetsy — Tue, 07 Aug 2012 14:47:45 +0000

Hi,Thanks for the answers. I did it byA S X.A COMP(NE Y.A)A X.B COMP(NE Y.B)A X.C COMP(NE Y.C)The dot notation is just to inform you that the field comes from a different file. This is for a JLF…using one instead of an MQT…to be used by a subfile scroll program. With the MQT, users would have to wait, 40 seconds to 2 minutes waiting for it to “refresh”. The JLF, although slower, performs better because each page only has to show 13 records – and retrieving 13 records from the JLF is much faster than a “refresh” of the MQT which will show data that is not “real-time”.

By: philpl1jb

philpl1jb — Fri, 03 Aug 2012 10:38:32 +0000

These look very much like the join fields. If these are the join fields, they shoud be used in the join section of the logical not the select/omit section.Phil

By: TomLiotta

TomLiotta — Thu, 02 Aug 2012 21:13:32 +0000

Note that it’s not clear exactly which records you want to process. By showing a WHERE clause and then asking about ‘Omit’, it’s not clear if you want to process or skip the records from the WHERE clause.

Tom

By: TomLiotta

TomLiotta — Thu, 02 Aug 2012 21:06:53 +0000

First, you need to have all six of those fields defined in the record format, so three of them will have to be renamed. Second, your WHERE clause is designed for ‘select’, so its logic will have to be reversed to give an ‘omit’ result.
Assuming that you RENAME the three fields from file Y to YA, YB and YC, the logical form would be “Omit records with A COMP(NE YA) or with B COMP(NE YB) or with C COMP(NE YC). Select ALL other records.”

Does that sound like the logic that you need? What is the actual difficulty you are having?

You would probably be better off using SQL to do the work.

Tom