ETL - In What scenario ETL coding is preferred than Database level SQL, PL/SQL coding? What is the methodo

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In What scenario ETL coding is preferred than Database level SQL, PL/SQL coding?
What is the methodology and process followed for ETL testing in Data warehouse environment?
Develop a mapping to extract the employee drawing maximum salary where deptno = department drawing...
If LKP on target table is taken, can we update the rows without update strategy transformation?
How you capture changes in data if the source system does not have option of storing date/time field...
What is the Difference between a ODS and Staging Area
What is the effect of the OPTIONS statement ERRORS=1
What are push and pull ETL strategies?
How do you tell aggregator stage that input data is already sorted
Can anyone please explain why and where do we exactly use the lookup transformations.

Thanks in advance
Thanks
Nayana...

Total Answers and Comments: 1

Last Update: November 27, 2007 Asked by: srihari

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