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IDS Forum

Re: script etiquette -load-unload

Posted By: Marcus Haarmann
Date: Thursday, 1 March 2012, at 11:59 a.m.

In Response To: Re: script etiquette -load-unload (Paul Watson)

There are temp tables with no log to get around long tx problems.
Either way, at the last step they load into a standard table. So this should not be the cause.

But for the initial question:
Maybe sombody wanted to have a sort of log what the scripts did in the filesystem for some reason.

But I would keep the log in the database in a separate table or mark the records which were transferred
instead of producing unload files.

Marcus

----- Ursprüngliche Mail -----

Von: "Paul Watson" <paul@oninit.com>
An: ids@iiug.org
Gesendet: Donnerstag, 1. März 2012 17:47:28
Betreff: Re: script etiquette -load-unload [26421]

Maybe to get around long TXs issues

Cheers
Paul

> Greetings:
>
> Background:
> I inherited a school system database that uses HPUX/Informix.
> We have many customized scripts to collect and export data to the state.
>
> I have noticed a pattern in my predecessors scripts:
> Instead of a single unload to file, they use multiple unload /load /
> unload/
> loads, ... and so I am wondering if I missed something in school.
>
> Typically I see:
> 1. UNLOAD to file1, selecting just a list of IDs.
> 2. LOAD file1 back into an informix temptable.
> 3. UNLOAD from temptable to file2, joining additional columns to the IDs
> 4. LOAD file2 into the target informix table.
>
> Problem:
> I'm worried that somewhere I missed something in my education, because if
> presented with this problem, I would have just done a single INSERT
> statement
> to move the IDs, along with the additional JOINED information directly
> into
> the target table.
>
> It is very thorough, but makes for difficult troubleshooting, and hard to
> make
> changes, because there are so many details to keep straight.
>
> Is there a reason I should follow the lead of my predecessors, or can I
> clean
> up the code and just make it simple?
>
> Many thanks to anyone who takes time to consider this for me, I appreciate
> it!
>
> Peter
>
>
>
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> Forum Note: Use "Reply" to post a response in the discussion forum.
>

--
Paul Watson
Tel: +1 913-674-0360
Mob: +1 913-387-7529
Web: www.oninit.com

www.advancedatatools.com

Failure is not as frightening as regret.
If you want to improve, be content to be thought foolish and stupid.

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