What is partitioning? Explain different types of partitioning?
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Explain the key challenges that you face while performing etl testing.
what is the difference between OLTP database and data warehousing database?
how do u automate Extraction process?
Can anyone please send me the latest informatica dumps (power center 8.1.1) for all the three exams? My mail id is yokilamai@gmail.com
list the transformation used for the following:Heterogeneous sources,Homogeneous sources,Find the 5 highest paid employees with in a dept,create a summery table,generate surrogate keys
What is a lookup table in etl?
what are Lookup caches options? Including persistent caches.
What is data cleaning?
what are Lookup caches options? Including persistent caches.
how do u decide whether u need to do aggregations at database level or at Informatica level?
where are the log files generally stored.Can you change the path of the file.what can the path be?
What are the types of Data Warehouse applications?