Search found 45 matches
- Wed Oct 03, 2012 11:58 am
- Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
- Topic: Calculate the difference in seconds for two timestamps field
- Replies: 3
- Views: 2667
- Wed Oct 03, 2012 10:53 am
- Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
- Topic: Calculate the difference in seconds for two timestamps field
- Replies: 3
- Views: 2667
Calculate the difference in seconds for two timestamps field
Hi.
I am wondering what is the best way to calcuate the difference in seconds for two timestamps fields in Server job. Thanks in advance.
I am wondering what is the best way to calcuate the difference in seconds for two timestamps fields in Server job. Thanks in advance.
- Tue Jul 10, 2012 11:54 am
- Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
- Topic: Should I use checksum
- Replies: 5
- Views: 2950
- Tue Jul 10, 2012 5:16 am
- Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
- Topic: Should I use checksum
- Replies: 5
- Views: 2950
- Mon Jul 09, 2012 9:50 pm
- Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
- Topic: Should I use checksum
- Replies: 5
- Views: 2950
Should I use checksum
I need to compare a table row with a row in a file to see if any field has changed. I am thinking to concatenation required fields and do the comparison. I am not sure if I should calculate the checksum then do the comparison. Which one is more efficient? Thank you in advance.
- Fri Mar 09, 2012 12:15 pm
- Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
- Topic: Table Column Definition
- Replies: 5
- Views: 2987
- Thu Mar 08, 2012 1:35 pm
- Forum: IBM<sup>®</sup> Infosphere DataStage Server Edition
- Topic: Table Column Definition
- Replies: 5
- Views: 2987
Table Column Definition
Hello, One of the column of Oracle table changes from number(5,2) to number(10,2). Should I change the table definition accordingly in data stage? I have a feeling that data stage does not need to change. Since I do not have access to data stage currently, I can not test it out. Can some one tell me...
- Fri Nov 25, 2011 8:24 am
- Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
- Topic: Parallel routines and emtpy strings
- Replies: 5
- Views: 4561
- Thu Nov 17, 2011 8:33 am
- Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
- Topic: Join growth on distinct Account ID
- Replies: 1
- Views: 1481
Re: Join growth on distinct Account ID
I think I know what is happening here. This is caused by the "Enable partitioned read" on the data source. DISTINCT and "Enable partitioned read" should not be used at the same time.
- Wed Nov 16, 2011 2:28 pm
- Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
- Topic: Join growth on distinct Account ID
- Replies: 1
- Views: 1481
Join growth on distinct Account ID
Hi, Currently we are doing a left join (hash partition on Account ID) on two Oracle tables on Account ID. The left table is a simple select statement with more than 1 unique Account ID, whereas the right statement has the 'Distinct' keyword and only selecting Account ID's from the table. My question...
- Thu Nov 10, 2011 12:27 pm
- Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
- Topic: Oracle db
- Replies: 3
- Views: 2228
- Tue Nov 08, 2011 9:28 pm
- Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
- Topic: How to estimate sratchdisk space for sorting
- Replies: 6
- Views: 3284
- Tue Nov 08, 2011 7:31 pm
- Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
- Topic: How to estimate sratchdisk space for sorting
- Replies: 6
- Views: 3284
- Tue Nov 08, 2011 7:24 pm
- Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
- Topic: How to estimate sratchdisk space for sorting
- Replies: 6
- Views: 3284
- Tue Nov 08, 2011 11:20 am
- Forum: IBM<sup>®</sup> DataStage Enterprise Edition (Formerly Parallel Extender/PX)
- Topic: How to estimate sratchdisk space for sorting
- Replies: 6
- Views: 3284
How to estimate sratchdisk space for sorting
I have to sort data with volume of 900 million records. The sort is on two keys with 26 bytes in total. The sort is not stable sort. If I caluclate 900 million multiple by 26, it should be about 23 G of data. But it consumes more than 200G of scratch disk space. What does the other data come from? D...