Search found 218 matches

by Nageshsunkoji
Wed Nov 22, 2006 7:34 am
Forum: Enhancement Wish List
Topic: About Parallel Lookup
Replies: 5
Views: 4712

I doubt that they'll do this, since the philosophy in parallel jobs is "one stage, one task". Certainly there are no plans to include lookup capability in the Transformer stage. But, hey, if you don't ask it will definitely never happen. Hi Ray, Thanks for your reply. I think, we have to ...
by Nageshsunkoji
Wed Nov 22, 2006 7:29 am
Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
Topic: Aggregator stage performance
Replies: 24
Views: 11529

Nagesh, If there are any decimal type columns, then we can add an environmental variable 'APT_DECIMAL_INTERM_PRECISION' and set the value to 2. by default it is 38. by this we are limiting the internal calculations to use only 2 precision, which might speed up the job. PerterPol, It is enough to do...
by Nageshsunkoji
Wed Nov 22, 2006 6:08 am
Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
Topic: Windows Vs UNIX
Replies: 8
Views: 2808

Hi Elavenil,

After all these posts and from my experiecnce, it is always better to choose UNIX environment rather than Windows. It will be very helpful in the sense of security and maintaince.
by Nageshsunkoji
Wed Nov 22, 2006 6:04 am
Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
Topic: Aggregator stage performance
Replies: 24
Views: 11529

It doesn't seem to help (still 48 minutes), or may be I misunderstood your advise... I added a sort stage before the aggregator stage to sort input on the aggregator grouping key. In both the sort and aggregator stage I selected hash partitioning. Peter Hi Peter, Its not required to perform HASH pa...
by Nageshsunkoji
Wed Nov 22, 2006 6:00 am
Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
Topic: Aggregator stage performance
Replies: 24
Views: 11529

tejaswini wrote:among the columns which you are aggregating, are there any decimal columns?
Hi tejaswini,

May I know, how it make difference with the performance if we have the decimal fields in the aggregation key. Can you explain the same, please.
by Nageshsunkoji
Wed Nov 22, 2006 5:54 am
Forum: Enhancement Wish List
Topic: About Parallel Lookup
Replies: 5
Views: 4712

About Parallel Lookup

Hi, I have posted this question already in Parallel enterprise edition forum about Lookup stage in parallel 7.5.1. In the present 7.5.1 lookup stage GUI, in lookup it's allowing to trim the columns and passing the parametsr as a lookup key and some other Transformer stage compatable functions. But, ...
by Nageshsunkoji
Wed Nov 22, 2006 5:20 am
Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
Topic: Preserve the partitioning
Replies: 4
Views: 1888

Hi,

Better to search in this forum, where you will get 'N' number of posts related to this topic 'Preserve Partitioning'.
by Nageshsunkoji
Wed Nov 22, 2006 5:18 am
Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
Topic: checking 'perform sort' option in 'sort' stage
Replies: 4
Views: 2527

hi, In job already I am having a separate 'SORT' stage. Also I am sorting explicitly on the same keys on which I am partitioning in the same stage. Now should I check the perform sort option also for the sort to happen? In this scenario, checking and unchecking this option mean the same or differen...
by Nageshsunkoji
Wed Nov 22, 2006 3:58 am
Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
Topic: Aggregator stage performance
Replies: 24
Views: 11529

Hi,

Adding few more points to the Arnd solution, perofrm HASH partition in the Sort stage before aggregator stage on grouping keys that you are using in the Aggregator stage. Your data will sort properly based on group keys and your job performance will increase.
by Nageshsunkoji
Wed Nov 22, 2006 3:09 am
Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
Topic: Oracle Stage Commit Point
Replies: 5
Views: 2982

Hi,

I think in your case, you can use UR ( Uncomitted Read or dirty read) in the SQL query itself by using WITH UR at the end. Usually we are doing the same thing in DB2 stage.
by Nageshsunkoji
Wed Nov 22, 2006 3:06 am
Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
Topic: checking 'perform sort' option in 'sort' stage
Replies: 4
Views: 2527

Hi, The following description given in Parallel Job Developers Guide , Perform Sort : Select this to specify that data coming in on the link should be sorted. Select the column or columns to sort on from the Available list. Usually, it is very helpful, if you want to perform link sorting, that means...
by Nageshsunkoji
Tue Nov 21, 2006 10:14 am
Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
Topic: parallel job functions
Replies: 12
Views: 5775

My 2 cents : Parallel job functions arent as well documented the way server job functions are. No examples of using functions and results have been documented. So some amount of trial/error is a must. In the orchestrate reference manual, we can find the functions with proper syntax and examples for...
by Nageshsunkoji
Tue Nov 21, 2006 3:53 am
Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
Topic: Heap Size Allocation
Replies: 11
Views: 6242

how to sort data inside teradata when it is a source and i have only the output tab where no partitioning tab is available, when it is in target we can see the input tab and partitioning tab where we can perform a sort.kindly do reply.. You will have to give a suitable Order By clause in the SQL qu...
by Nageshsunkoji
Tue Nov 21, 2006 3:45 am
Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
Topic: To hide warning messages in Datastage parallel edition
Replies: 9
Views: 7943

It works but we need to eliminate these kind of warnings. "Jn_Tgt_Lkp_Ins: When checking operator: On input data set 1: When binding input interface field "ABU_KEY" to field "ABU_KEY": Implicit conversion from source type "int64" to result type "decimal[10,0]...
by Nageshsunkoji
Mon Nov 20, 2006 4:13 am
Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
Topic: Problem while loading into Sybase tables
Replies: 2
Views: 3011

Hi, I think problem with the library files and its not loaded properly in your system. Check the $LIBPATH environment variable, to identify lib path of your project.

Regards,
Nagesh.