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Compare etl & elt?
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when u connect the repository for the first time it asks you for user name & password of repository and database both.But subsequent times it asks only repository password. why?
What is tracing level and what are the types?
What is full load & incremental or refresh load?
what are the concerns of OLTP and DSS systems?
Explain the key challenges that you face while performing etl testing.
if u can't find what you are looking for in lookup table, how do you handle?
Can anyone tell me what are the roles and responsibilities of informatica support ( L1, L2, & L3 ) Team?
1 Answers IBM, Saama Tech, Wipro,
What is ROWID explain ?
When you have 2 servers in two different time zone and if you need to extract data from 1 server and load it in another server, how do you go about it? Best method to be used.
what are the facilities provided by data warehouse to analytical users?
What are materialized views & where do we use them?
what are the concerns of OLTP and DSS systems?
Teradata 
