How can you use an Oracle sequences in Informatica ? You
have an Informatica sequence generator transformation also.
which one is better to use?
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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?
Can u access a repository created in previous version of Informatica?
if i have a query as flat file how can we load data to target table
Explain do we need an etl tool?
Compare ETL & Manual development?
what is the meant by Normalization and de-normalization?
what are the types in error loging?
Explain the key challenges that you face while performing etl testing.
what are the reports created in mm and sd side using sap bw in a project? name some of them and explain the requirement?
What is a staging area? What is the purpose of a staging area?
Explain what are the various etl tools in the market?
what is granularity in Data ware House?
Teradata 
