Search found 6797 matches
- Fri Jan 26, 2007 8:16 pm
- Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
- Topic: ODBC connection issue
- Replies: 3
- Views: 690
- Fri Jan 26, 2007 7:38 pm
- Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
- Topic: Check For File
- Replies: 10
- Views: 2697
- Fri Jan 26, 2007 7:33 pm
- Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
- Topic: Change Data Capture
- Replies: 22
- Views: 5045
- Fri Jan 26, 2007 5:50 pm
- Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
- Topic: Tranformer Constraint Expressions
- Replies: 36
- Views: 13920
- Fri Jan 26, 2007 5:43 pm
- Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
- Topic: Problem in getting environment variable in routines...
- Replies: 29
- Views: 13520
- Fri Jan 26, 2007 5:40 pm
- Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
- Topic: Tranformer Constraint Expressions
- Replies: 36
- Views: 13920
Doing a sql level join is a personal preference as i like to keep my job design as simple as possible with the least number of stages used. But for complex and huge queries you have to use hashed files. Plus not all joins are possible within a single sql query. Plus if your tables are in different s...
- Fri Jan 26, 2007 4:34 pm
- Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
- Topic: Tranformer Constraint Expressions
- Replies: 36
- Views: 13920
- Fri Jan 26, 2007 4:32 pm
- Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
- Topic: CDC Operator
- Replies: 4
- Views: 866
- Fri Jan 26, 2007 4:29 pm
- Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
- Topic: Tranformer Constraint Expressions
- Replies: 36
- Views: 13920
Let me clear one point. If you build a hashed file with two keys defined and try to read it with one or three. It will give you garbage. Secondly I prefer to do sql select join. This is done in the source database. If i cannot do sql joins then yes, i unload the keys and the columns I need only into...
- Fri Jan 26, 2007 4:19 pm
- Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
- Topic: Tranformer Constraint Expressions
- Replies: 36
- Views: 13920
As I noted earlier, I counsel against the use of NOTFOUND with db stages. YMMV. And the constraint, while 'unusual' in my book, should work fine - unless the sql used in the stage has been monkeyed with. I didnt read your previous reply. I dont use direct lookups to tables at all. I use a hashed fi...
- Fri Jan 26, 2007 4:08 pm
- Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
- Topic: CDC Operator
- Replies: 4
- Views: 866
- Fri Jan 26, 2007 4:06 pm
- Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
- Topic: Tranformer Constraint Expressions
- Replies: 36
- Views: 13920
Whatever you make key has to be hit upon fromt he source for the lookup to be successful. I dont agree with the constraint that you are using. You should be using NOT(reflink.NOTFOUND). This way each it will pass only if lookup is successful. Dont do equality checks on individual key columns. Plus y...
- Fri Jan 26, 2007 4:00 pm
- Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
- Topic: Change Data Capture
- Replies: 22
- Views: 5045
Take a million rows, perform your bench mark. Increase it with factors of 10 untill you read maybe 1/3 of your data. Keep noting the performance change. This will give you a fairly accurate approximation of how much time it will take you for the full run.Its hard to guess the time frame without know...
- Fri Jan 26, 2007 3:57 pm
- Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
- Topic: Phantoms
- Replies: 5
- Views: 833
- Fri Jan 26, 2007 3:54 pm
- Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
- Topic: increment counter
- Replies: 13
- Views: 2556