why do we need a datawarehouse when we have databases to store
data?
Answer / sriram
Database contains data called production data mostly and we can do operations but not recommended which is a performance issue and is always busy with application data
where as in DW,the data which we maitain is called historical data, on which we can play around.
| Is This Answer Correct ? | 1 Yes | 0 No |
A job is having only 2 stages I/p dataset and target table.Job is taking very long time to load 50 million records.How to improve performance of this job.
Pls tell me what is troubleshooting in datastage view?
HOW WILL YOU IMPLEMENT SURROGATE KEY IN SCD BY USING SURR_KEY GENERATOR,THE VALUE OF S_KEY SHOULD NOT REPEAT EVEN IF THE JOB IS COMPILED REPEATEDELY?
What is APT_DUMP_SCORE?
Hi guys, please design a job with derivation(solution). write exact conditions. My requirement Source table emp_no qualification 1 a 1 c 2 a 3 c 3 b Target table emp_no qualification 1 b 2 b 2 c 3 a Here every employer have three qualifications i.e a,b and c. what ever source table dont have some qualification, that will be move to target table. Like above. Hope u get the point. Thanks.
8000 jobs r there i given commit, suddenly job will abort? what happens? 2)diff b/t transformer stage & filter stage? 3)how to load the data in the source?
what is the difference between lookup stage reject link and merge stage reject link in datastage Parallel jobs? interm of output in Merge Reject link and Look Up Reject link ?
on how many columns we can perform aggregation in the Aggregator stage?
tell me abt Datastage trigger?
im new to this tool im now at project plz tell me step by step process how to design plz help me i wnt to go with exp for job plz give me d proper design and explination
What is oci?
What are the types of jobs we have in datastage?