RE: Question About DDMF

Keyed delete / write 


Christopher Bipes
Information Services Director
CrossCheck, Inc.

707.586.0551, ext. 1102
707.585.5700 FAX

Chris.Bipes@xxxxxxxxxxxxxxx
www.Cross-Check.com

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-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Wilt, Charles
Sent: Tuesday, May 09, 2006 9:06 AM
To: Midrange Systems Technical Discussion
Subject: RE: Question About DDMF

"an update without a read"???

How the heck to you do that?

>From the manual, "Before UPDATE is issued to a file or record, a valid
input operation with lock (READ, READC, READE, READP, READPE, CHAIN, or
primary/secondary file) must be issued to the same file or record."

I know that the DELETE op-code supports DELETE'ing without first
reading.  And WRITE obviously doesn't need a read first.  But neither
would help the OP as he specifically said he's updating records. 


Charles Wilt
--
iSeries Systems Administrator / Developer Mitsubishi Electric Automotive
America
ph: 513-573-4343
fax: 513-398-1121
  

> -----Original Message-----
> From: midrange-l-bounces@xxxxxxxxxxxx 
> [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Chris Bipes
> Sent: Tuesday, May 09, 2006 11:54 AM
> To: Midrange Systems Technical Discussion
> Subject: RE: Question About DDMF
> 
> You can improve performance if you can do an update with out a read.
> I.e.. Keyed Delete/write.  That way you are only sending the record 
> across comm. once.
> 
> 
> Christopher Bipes
> Information Services Director
> CrossCheck, Inc.
> 
> 707.586.0551, ext. 1102
> 707.585.5700 FAX
> 
> Chris.Bipes@xxxxxxxxxxxxxxx
> www.Cross-Check.com

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