Search found 15603 matches
- Tue Sep 29, 2009 6:12 am
- Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
- Topic: Count of column which is varchar datatype
- Replies: 3
- Views: 1231
- Tue Sep 29, 2009 4:05 am
- Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
- Topic: problem in reading variable number of columns from file
- Replies: 7
- Views: 1674
- Tue Sep 29, 2009 3:43 am
- Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
- Topic: Tsort merger aborting: Scratch space full
- Replies: 1
- Views: 2357
- Tue Sep 29, 2009 3:28 am
- Forum: General
- Topic: Surrogate Key Generation using DS routine
- Replies: 13
- Views: 2892
It is not quite clear what you are having problems with. Surrogate key generation is unique across all nodes and ordered within each node. If you have multiple nodes and write to a sequential target your ordering will not sequential. Either run on 1 node or put a sort on the surrogate key into your ...
- Tue Sep 29, 2009 1:49 am
- Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
- Topic: problem with cff stage
- Replies: 3
- Views: 1150
- Tue Sep 29, 2009 1:46 am
- Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
- Topic: Complex Flat File Issue
- Replies: 10
- Views: 2542
Which stage is output? With a lookup stage, you would need one source stage, one reference stage and an output stage - that makes at least 4 stages for the job - or is it a sequential stage in addition to your CFF stage? No matter, still do the same, replace candidates with peek or dummy copy stages...
- Tue Sep 29, 2009 1:12 am
- Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
- Topic: Complex Flat File Issue
- Replies: 10
- Views: 2542
- Tue Sep 29, 2009 1:07 am
- Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
- Topic: working of join stage!
- Replies: 16
- Views: 5536
Stages such as the aggregator will store the minimum amount of data necessary. If the input stream is sorted by Columns A and B, then an aggregate function on Column B would only need to store/process data for one value of Column B, once that changes it knows that no further identical values of Colu...
- Tue Sep 29, 2009 12:56 am
- Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
- Topic: Conversion problem of High values using CFF stage
- Replies: 3
- Views: 2076
Without looking further into the issue, I do know that the High-Value of a PIC X and PIC S9 COMP-3 are different values so that if the are in the same location, as specified with the REDEFINES, you can only use one or the other. It would seem that MAX-FV was set with high value, making the value of ...
- Tue Sep 29, 2009 12:42 am
- Forum: General
- Topic: Surrogate Key Generation using DS routine
- Replies: 13
- Views: 2892
- Tue Sep 29, 2009 12:39 am
- Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
- Topic: Hashed File Keys
- Replies: 3
- Views: 1013
Unfortunately that will not work. Since hashed files physically only have one non-duplicate key, your multiple keys actually get concatenated together with a separator (@TM) by DataStage to form that single key. Therefore you cannot just use to a subset of the key for a lookup. While it is possible ...
- Tue Sep 29, 2009 12:30 am
- Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
- Topic: Complex Flat File Issue
- Replies: 10
- Views: 2542
- Mon Sep 28, 2009 8:11 am
- Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
- Topic: working of join stage!
- Replies: 16
- Views: 5536
No, not quite. The partitioning algorithm is not a factor, just that all the records that you wish to join need to be in the same partition on all links - effectively meaning you should use the same partitioning algorithm for all partitions. The topic of using explicit or implicit sorts has been dis...
- Mon Sep 28, 2009 7:36 am
- Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
- Topic: working of join stage!
- Replies: 16
- Views: 5536
- Mon Sep 28, 2009 7:34 am
- Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
- Topic: how to change the read cache memory size for hashfile
- Replies: 8
- Views: 1606
There is a whole PDF documenting the differences and link caching functionality, but in most cases it is not necessary to turn on this functionality. Just load your hashed lookup file to memory (just those columns you intend on using) and DataStage will, in almost all cases, do a quick and good job ...