What are ETL Tools?


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More Informatica Interview Questions

How to eliminate duplicates from flat file..what is the procedure

4 Answers  


My Source qualifier has empno, sal. Now my mapping is like SQ(EMPNO)->AGGR->EXP->TARGET SAL ------------>TARGET ? means only one source qualifier has 2 columns like empno, sal. connected to same target as shown in above mapping.Is this mapping valid or any issues are there if we design like this?

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every DWH must have time dimension so now what is the use of the time dimension how we can calculate sales for one month,half-yr'ly,and year'ly?how we are doing this using time dimension.

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What are the types of schemas we have in data warehouse and what are the difference between them?

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In Joiner Transformation, how to identify the master and detail tables if one is from Oracle and the other is from Sybase.

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What is the use of transformation?

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What do you mean by channel change?

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how do u move the code from development to production?

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