intermediate hash file

Post questions here relative to DataStage Server Edition for such areas as Server job design, DS Basic, Routines, Job Sequences, etc.

Moderators: chulett, rschirm, roy

Post Reply
femil
Participant
Posts: 27
Joined: Mon Nov 02, 2009 10:54 am
Location: chennai

intermediate hash file

Post by femil »

Why hash file is used as the intermediate file?
Sainath.Srinivasan
Participant
Posts: 3337
Joined: Mon Jan 17, 2005 4:49 am
Location: United Kingdom

Post by Sainath.Srinivasan »

Please avoid posting interview questions.

Have you attempted using them or tried searching this forum ?
femil
Participant
Posts: 27
Joined: Mon Nov 02, 2009 10:54 am
Location: chennai

Re: intermediate hash file

Post by femil »

femil wrote:Why hash file is used as the intermediate file?
Thanks for the advice, it's not an interview question.

i want to know that why hash file is prefered for intermediate file rather than sequential file
mgendy
Premium Member
Premium Member
Posts: 44
Joined: Thu Sep 10, 2009 5:30 am
Contact:

Re: intermediate hash file

Post by mgendy »

femil wrote:
femil wrote:Why hash file is used as the intermediate file?
Thanks for the advice, it's not an interview question.

i want to know that why hash file is prefered for intermediate file rather than sequential file
Who said that hash file is preferred to use as intermediate file rather than sequntial file in Server Edition ???
Kindly clarify ?
Mohmmed Elgendy
Senior System Analyst
Data IntegrationTeam
Etisalat Egypt
+20 1118511161
ArndW
Participant
Posts: 16318
Joined: Tue Nov 16, 2004 9:08 am
Location: Germany
Contact:

Post by ArndW »

If the intermediate file is to be read sequentially, then using a hashed file instead of a sequential file would be adding unnecessary overhead.
ray.wurlod
Participant
Posts: 54607
Joined: Wed Oct 23, 2002 10:52 pm
Location: Sydney, Australia
Contact:

Post by ray.wurlod »

Please advise the source of this advice (that hashed files should be used as intermediate storage) and the context in which it was given. I predict that you have taken the advice out of a quite specific context.
IBM Software Services Group
Any contribution to this forum is my own opinion and does not necessarily reflect any position that IBM may hold.
Post Reply