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Explain the key challenges that you face while performing etl testing.
what is the use of server manager?
Explain about hash partitioning?
what is the meant by Normalization and de-normalization?
What is etl process. How many steps etl contains explain with example?
how do use session mapping parameters ?(in which transformation)
Hi, I've a mapping with flat file source The target update override property for the target table is using update stmt. There is no update strategy between source and target. Also The session has the target properties as Insert , Update as update options checked. Does this mean that recs will be inserted only and the update override will not be applied at all. Thanks
Compare etl & elt?
Explain the use lookup tables and Aggregate tables?
what is the main role of FI on business
In informatica, I have 10 records in my source system. I need to load 2 records to target for each run. How do I do this?
what is the difference between cardinality and Nullability?
when u connect the repository for the first time it asks you for user name & password of repository and database both.But subsequent times it asks only repository password. why?
what is granularity in Data ware House?
How many steps etl contains?