How to Use datasets?

[skumar]

Hi all,

Can any one give an idea how to use the datasets?
i am tried with normal procedure but it was giving the following errors.

*** Error executing command: orchadmin describe -s /home/user/EXAMPLE.ds
##I TFCN 000001 00:29:40(000) <main_program>
Ascential DataStage(tm) Enterprise Edition 7.5.1A
Copyright (c) 2004, 1997-2004 Ascential Software Corporation.
All Rights Reserved
##I TUTL 000031 00:29:40(001) <main_program> The open files limit is 2000; raising to 2147483647.
##E TFDM 000000 00:29:40(002) <main_program> The file identified as '/home/user/EXAMPLE.ds' is not an ORCHESTRATE Data Set descriptor.
##I TCOA 000040 00:29:40(003) <main_program> ERROR: could not describe /home/user/EXAMPLE.ds
dataset descriptor file has unrecognizeable contents.
##I TCOA 000056 00:29:40(004) <main_program> For help, type: describe -help.

Thanks in Advance.

Regards,
kumar.

[ray.wurlod]

Does the file exist? How was is created? For this to work, it must - must - have been created with a Data Set stage; it is a common mistake to believe that one can create a Data Set with a Sequential File stage.

[skumar]

Hi Ray,

can you please tell me how to create the file?
thanks,
kumar

[Prashantoncyber]

DataStage parallel extender jobs use data sets to
manage data within a job.

can you tell the data flow in job?

[skumar]

Hi prashantoncyber,

Thanks for ur reply but i don't know how to use them i mean how to cretae the .DS files can you expalin it to me?

Thanks,
kumar

[vicmania]

Hello,

normally DataStage creates the file. But the directory must exist and the DataStage user needs the according permissions to be allowed to create the file...

Hope this helps

vicmania

[skumar]

Thanks to all for the replies. can any one tell me what is the default path ?plzzzzzzzzz

[ray.wurlod]

There is no "default path". You must use a Data Set stage to create a Data Set. The File property must be a pathname with the file name ending in ".ds". If you do not provide a pathname, the ".ds" file is created in the project directory. This file is the Data Set control file; the actual data files are created in the directories specified in the configuration file as disk resources.