Explain etl mapping sheets?
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Which transformation we use to convert 'NA' to 'Not Available'
how do u decide whether u need to do aggregations at database level or at Informatica level?
what is the main role of FI on business
Eliminating of duplicate records without using dynamic lookups
What is partitioning? Explain about round-robin, hash partitioning.
what is the difference between date cache and lindex cache?
how would u estimate the size of Aggregator transform data and index cache?
Define slowly changing dimensions (SCD)?
how would u estimate the size of Lookup transform data and index cache?
what is a worklet?
without using ETL tool can u prepare a Data warehousing and maintaining?
Explain the use lookup tables and Aggregate tables?