Search found 4992 matches

by kcbland
Tue Jun 01, 2004 10:51 am
Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
Topic: Hash File Build
Replies: 5
Views: 1347

Up the minimum modulus from 1. What you're probably seeing is the resize by doubling effect degrade performance. Checkout this post as well:
http://www.dsxchange.com/viewtopic.php?t=85364
by kcbland
Mon May 31, 2004 9:57 pm
Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
Topic: Making ETL refer a rule based engine
Replies: 16
Views: 18204

As much as I enjoy this thread, we're discussing last years model. The Server product is not the future, it's the Parallel edition. The flexibility and ease of use of the Server product will allow you to do anything. Every custom solution has to be done with an eye towards open metadata and sharing....
by kcbland
Mon May 31, 2004 7:20 pm
Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
Topic: Making ETL refer a rule based engine
Replies: 16
Views: 18204

I have a rules/metadata based data cleansing module/bolt-on for DataStage to enforce L0 data quality with some cross-column verification and enforcement. However, the question is transformation, not cleansing. That being said, T is mostly about enforcing business rules, from my experience. The clean...
by kcbland
Mon May 31, 2004 12:37 pm
Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
Topic: Hash File Limit
Replies: 7
Views: 1985

Search the forum for mkdbfile command. You can manually created the hash file with the 64bit keyword so that you don't have to mess around with all of these afterwards commands.
by kcbland
Mon May 31, 2004 12:35 pm
Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
Topic: Making ETL refer a rule based engine
Replies: 16
Views: 18204

The introduction of a rules based engine for transformation removes the T from the ETL formula. In my opinion, the T is the strength of DataStage. I suggest that your company probably bought the wrong tool if all they need DataStage to handle is the E and the L.
by kcbland
Mon May 31, 2004 12:34 pm
Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
Topic: Row out of sequence
Replies: 2
Views: 752

Unsorted data requires the aggregator to work much harder, and there are limitations as to how much unsorted data it can aggregate. If you have 1 million rows that group to 1 million rows, the aggregator will have performance issues. If you have 1 million rows that group to 10 thousand rows, the agg...
by kcbland
Sat May 29, 2004 9:31 pm
Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
Topic: UPSERT Deadlock
Replies: 3
Views: 1948

Load only and UPSERT are vastly different actions in the database. UPSERT involves DML, where Load uses sqlldr. So, in a nutshell, you're comparing DML loading versus sqlldr, and probably sqlldr DIRECT path.
by kcbland
Thu May 27, 2004 12:07 pm
Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
Topic: leading zero
Replies: 6
Views: 1094

Code: Select all

FMT(DataTypePicComp3(DSLink31.MMRPHN02), "R%15")
by kcbland
Thu May 27, 2004 11:43 am
Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
Topic: Routine(General)
Replies: 4
Views: 947

Where's nag?
by kcbland
Thu May 27, 2004 11:05 am
Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
Topic: leading zero
Replies: 6
Views: 1094

Anywhere you need to format a value such as a derivation, key expression, stage variable, or constraint:

Code: Select all

FMT(linkname.columnname, "R%15")
by kcbland
Thu May 27, 2004 10:29 am
Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
Topic: Routine(General)
Replies: 4
Views: 947

Search the forum for DEFFUN and you'll see examples
by kcbland
Thu May 27, 2004 10:28 am
Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
Topic: leading zero
Replies: 6
Views: 1094

Code: Select all

FMT(string, "15'0'R") 

should be

Code: Select all

FMT(string, "R%15")
by kcbland
Wed May 26, 2004 3:26 pm
Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
Topic: OS Trouble shooting during 10 jobs running in pararell
Replies: 7
Views: 2009

Let us know if your problem is still around.
by kcbland
Fri May 21, 2004 9:41 pm
Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
Topic: OS Trouble shooting during 10 jobs running in pararell
Replies: 7
Views: 2009

I bet the T30FILES value is too low in the uvconfig file. You probably will need to up this if you're using a lot of dynamic hash files. Remember, each job uses a couple of dynamic hash files just by their nature (logs, status, config, etc), in addition to any your design uses.
by kcbland
Fri May 21, 2004 9:26 am
Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
Topic: Writing to Hash file
Replies: 7
Views: 1435

Write Cache will not overwrite a hash record so the first record in is the final record only on duplicate keys. Going back in time a little, but this came up in conversation this morning... This statement concerned me, so I wrote a little test case to see if it was really the case that overwrites d...