Is hadoop a etl tool?
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Difference between flat files and relational sources?
where we cannot use sorter Transformation. if we use then we will not get correct data?
when will use SQL override in a lookup transformation?
what is granularity in Data ware House?
Explain different types of partitioning?
can Informatica be used as a cleansing tool? If yes, give examples of transformations that can implement a data cleansing routine.
when should one create lookup transformation ?
Which transformation we use to convert 'NA' to 'Not Available'
What is etl process? How many steps etl contains?
When do we analyze the tables?
How to Check the source record count from traget table.
what are the facilities provided by data warehouse to analytical users?