Can any one look into this??

Post questions here relative to DataStage Enterprise/PX Edition for such areas as Parallel job design, Parallel datasets, BuildOps, Wrappers, etc.

Moderators: chulett, rschirm, roy

Post Reply
AmeyJoshi14
Participant
Posts: 334
Joined: Fri Dec 01, 2006 5:17 am
Location: Texas

Can any one look into this??

Post by AmeyJoshi14 »

Can anybody give detail of ... what is RunTime Column Propgation (RCP) is and what are the effects if check in the RCP box ?? :?:
sri1dhar
Charter Member
Charter Member
Posts: 54
Joined: Mon Nov 03, 2003 3:57 pm

Post by sri1dhar »

Refer to Page 2-27 of "Parallel Job Developer's Guide".

DataStage is flexible about meta data. You can define part of your schema and specify that, if your job encounters extra columns that are not defined in the meta data when it actually runs, it will adopt these extra columns and propagate them through the rest of the job. This is known as runtime column propagation (RCP).

Example: when you are selecting from an Oracle table thru Oracle Enterprise Stage. You need to only define the metadata for the columns you are selecting, but when a record is rejected 2 columns sqlcode, sqlMessage (you need not define metadata for these columns) gets implicitly populated to the downstream stages which you can refer and use.
chulett
Charter Member
Charter Member
Posts: 43085
Joined: Tue Nov 12, 2002 4:34 pm
Location: Denver, CO

Post by chulett »

Two suggestions:

1) You start using better thread subjects rather than your "anyone" pleas. Of course, there are all kinds of "anyones" that can help with or look into issues here, that's the whole point of our existence.

2) 'Details' regarding RCP can be had by reading the documentation. Then come back here with specific questions or issues you encounter.
-craig

"You can never have too many knives" -- Logan Nine Fingers
Post Reply