• Subject: Re: Matching Record (Was Need Help)
  • From: Jeff Crosby <jlcrosby@xxxxxxx>
  • Date: Tue, 05 Aug 1997 11:34:24 -0500
  • Organization: Dilgard Frozen Foods

Trivia question:  Does anyone remember the difference between the following:

FFILE1  IPEAE             DISK
FFILE2  ISEAE             DISK

and

FFILE3  IPEAE             DISK
FFILE4  IS AE             DISK

and

FFILE5  IP AE             DISK
FFILE6  ISEAE             DISK
 
In the first example, LR will come on only when FILE1 and FILE2 _both_ have reached EOF.

In the second example, LR will come on when FILE3 reaches EOF and the possibility exists that not all records will be read from FILE4.  Since FILE3 is the IP file, any records in FILE4 with keys matching the last key in FILE3 will _not_ be processed.

In the third example, LR will come on when FILE6 reaches EOF and the possibility exists that not all records will be read from FILE5.  Since FILE5 is the IP file, any records in FILE5 with keys matching the last key in FILE6 _will_ be processed.

How close am I?  :)

--
-Jeff

jlcrosby@fwi.com
 


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