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can u anyone plz share some etl testing interview question .
and share the sql queries and unix .
plz help me to clear in the etl testing interview by sharing ur knowledge
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Explain etl mapping sheets?
can Informatica be used as a cleansing tool? If yes, give examples of transformations that can implement a data cleansing routine.
Give a way in which u can implement a real time scenario where data in a table is changing and u need to look up data from it.How will u configure the look up transform for this purpose?
Compare etl & elt?
what are Lookup caches options? Including persistent caches.
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What are various etl tools in the market?
Difference between flat files and relational sources?
When do we analyze the tables?
what are the different forms of normalization?
what is the difference between OLTP database and data warehousing database?
What is Relational Integrity?
Teradata 
