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list the transformation used for the following:Heterogeneous
sources,Homogeneous sources,Find the 5 highest paid
employees with in a dept,create a summery table,generate
surrogate keys
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Answer / nagesh
For Heterogeneous sources,use joiner transformation
Homogeneous sources go for source qualifier transformation
TOP 5 SAL
SELECT ROWNUM,ENAME,SAL FROM (SELECT ENAME,SAL FROM EMP
ORDER BY SAL DESC)
Where rownum <6
| Is This Answer Correct ? | 4 Yes | 1 No |
Answer / dw_worker
Heterogeneous sources - Joiner
Homogeneous sources - Source Qualifier
Find the 5 highest paid employees with in a dept - Rank
Create a summary table - Aggregator
Generate surrogate keys - Sequence Generator
| Is This Answer Correct ? | 3 Yes | 0 No |
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