What is etl tool in hadoop?
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What are materialized views & where do we use them?
What are the types of data warehouse applications and what is the difference between data mining and data warehousing?
Identifying the bottlenecks in various components of Informatica and resolving them.
Assume u have a 24CPU machine with 24GB RAM, suggest how u would like to configure Informatica ,like number of concurrent sessions, RAM requirements etc,max partitions that u would permit per mapping.
What is a lookup table in etl?
explain the methodology of Data Warehousing?(Polaries)
what is Forward,Reverse and Re_engineering?
how to do aggregation (year wise quantity ) using only source qualifier, the source is sql server date as datetime data type and target as flat file with year (string datatype)
what are variable ports and list two situations when they can be used?
how to load the data to fact table?
what is the main role of FI on business
what happens if the info.server doesn't find the session parameter in the parameter file?