how many maximum session supports to multiload in teradata ??
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how to join two tables without using joiner transformation .advantages of joiner over lookup and vice versa.
What is Relational Integrity?
Explain do we need an etl tool? When do we go for the tools in the market?
architural difference between 7.1 workflow monitor and 8.1 workflow monitor.
What are the names of the layers in etl?
Which type or t/s is used to convert rows into column & column into rows
where are the log files generally stored.Can you change the path of the file.what can the path be?
can Informatica be used as a cleansing tool? If yes, give examples of transformations that can implement a data cleansing routine.
explain the methodology of Data Warehousing?(Polaries)
Compare etl & elt?
Explain the key challenges that you face while performing etl testing.
What are the steps involved in etl process?