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  • Subject: RE: Fastest way to delete records.
  • From: "Shaw, David" <dshaw@xxxxxxxxxxx>
  • Date: Thu, 8 Feb 2001 11:22:38 -0500

Why would duplicate keys in such a logical be a problem?  Just don't specify
UNIQUE.

Dave Shaw
Spartan International, Inc.
Spartanburg, SC
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-----Original Message-----
From: Quazy [mailto:quazy@SoftHome.net]
Sent: Thursday, February 08, 2001 9:14 AM
To: RPG400-L@midrange.com
Subject: Re: Fastest way to delete records.


sounds good, but I can't create a logical on timestamp alone.  As then I 
would have many duplicate keys. as there are 40,000 employee numbers each 
with many timestamps.

At 01:49 PM 2/7/01 -0800, you wrote:
>Hmm...
>create a logical on the time stamp.
>
>Open Combined Full procedural this file
>Do while not LR
>   if  TimeStamp <= ToTimeStamp
>   Delete  Record
>   else
>   SetOn LR
>   EndIf
>End Do
>
>Can anyone think of a faster way?
>
>Regards,
>
>Jim Langston
>
>
>Quazy wrote:
> >
> > I have a file with about 10 million records.  It is keyed on  Company #,
> > Employee #, and Time stamp.
> >
> > I need to delete all records that have a time stamp before a certain
time
> > period.
> >
> > Any suggestions on the fastest approach?
> > Speed is a very important factor.
> >
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