RE: CHAIN versus SETLL

[Bob Cozzi <BobCozzi@xxxxxxx>]

Booth,

No. the resulting indicators tell you if the record is there, or if you read 
past end of file.

Bob Cozzi


-----Original Message-----
From:   boothm@earth.goddard.edu [SMTP:boothm@earth.goddard.edu]
Sent:   Tuesday, May 20, 1997 2:34 PM
To:     MIDRANGE-L@midrange.com
Subject:        Re: CHAIN versus SETLL

Don't you need to do a setll,
 then do a read,
 then do a compare to your key,
 to see if the record you seek is actually there?  

Whereas, with a chain you need only hit the file's index to set on the
no-hit indicator?


In <3381E148.184E@slomins.com>, on 05/20/97 
   at 10:37 AM, Wayne Achenbaum <wache@vicomnet.com> said:

#The instructor taught the
#class that a setll was more expensive than a chain on a no hit condition.

-- 
-----------------------------------------------------------
boothm@earth.goddard.edu
-----------------------------------------------------------


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