Search found 178 matches
- Wed Sep 14, 2005 4:01 pm
- Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
- Topic: '' in HASH file
- Replies: 12
- Views: 3200
- Wed Sep 14, 2005 3:46 pm
- Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
- Topic: DS functions as Stage Variables
- Replies: 4
- Views: 2198
- Thu Jun 16, 2005 9:20 am
- Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
- Topic: One large sequence or separate sequences?
- Replies: 2
- Views: 1229
Thanks for your input. After discussing this some, we've concluded that we're going to organize our project so the shared dimensions will be built in one sequence, with individual sequences for each of the additional dimensions and fact tables. We'll probably have a single master sequence that will ...
- Wed Jun 15, 2005 2:10 pm
- Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
- Topic: One large sequence or separate sequences?
- Replies: 2
- Views: 1229
One large sequence or separate sequences?
I am sure this has been asked before but I know we all enjoy sharing our opinions. :-) We have a complete ETL sequence and now have the case where an additional dimension and fact table is needed. These new tables are related to the existing tables by using shared dimensions. So.... I can think of r...
- Thu Jun 02, 2005 11:33 am
- Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
- Topic: Storing CRC values
- Replies: 16
- Views: 10686
Thanks for the input, Alan. Much appreciated. I will look into your idea of exporting the CRC data to a flat file and then reimporting on each run. I'll compare the performance of this with just regenerating the CRC from the database. I expect the load-from-flat-file will be much faster. Having work...
- Thu Jun 02, 2005 8:53 am
- Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
- Topic: Trapping a connection failure and proceeding
- Replies: 3
- Views: 1383
- Thu Jun 02, 2005 8:51 am
- Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
- Topic: Storing CRC values
- Replies: 16
- Views: 10686
Yes, I would be interested in learning more about the method you are using. It sounds like, during each ETL run, it is making a pass through the source data and generating a list of which are inserts, updates, deletes. Then this list is used in later processing to actually control the processing of ...
- Wed Jun 01, 2005 4:08 pm
- Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
- Topic: Trapping a connection failure and proceeding
- Replies: 3
- Views: 1383
Trapping a connection failure and proceeding
[I've searched but I think this is a topic that is difficult to locate with a search. It could be under any number of things.] I have had to go to manually unscheduling the ETL when a weekend arrives where there is scheduled maintenance on a target DB. If I don't do this, the ETL will fail and abort...
- Wed Jun 01, 2005 3:56 pm
- Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
- Topic: Storing CRC values
- Replies: 16
- Views: 10686
Storing CRC values
I'd like some input from the community. Background: I've been working with DataStage for about six months now and feel pretty competent with it. I am using a CRC-check model where a change in a record is determined by a change in the CRC generated for the pertinent fields. The new generated value is...
- Wed Mar 30, 2005 10:26 am
- Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
- Topic: Very slow updates vs. inserts
- Replies: 5
- Views: 3049
Thanks, ray.wurlod. I suspected that was the case but was hoping there was some tuning in DS I could use. :-) roy, I did search but didn't seem to find anything that particularly fit my question. #1 might work but I would need to include the keys from the original table in the inserts into the new t...
- Tue Mar 29, 2005 2:57 pm
- Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
- Topic: Very slow updates vs. inserts
- Replies: 5
- Views: 3049
Very slow updates vs. inserts
I am seeing VERY slow times when using an update vs. an insert (3 rows/second vs. 3000 rows/second). Is this normal for DataStage to exhibit this drastic of a difference? I am relatively new to DataStage but have successfully created an ETL sequence that works very well using a type 2 (Kimball) mode...
- Mon Mar 28, 2005 10:15 am
- Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
- Topic: Container-based vs. sequence-based design models
- Replies: 3
- Views: 1435
- Fri Mar 25, 2005 11:47 am
- Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
- Topic: Container-based vs. sequence-based design models
- Replies: 3
- Views: 1435
Container-based vs. sequence-based design models
I've been exploring use of containers within a job to separate tasks vs. putting the tasks into separate jobs and then putting the jobs together with a sequence. Here's my thoughts and I ask for related feedback from the experts -- bascially everyone else :-) Container-based Design Model - Pros: 1) ...