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Answer Posted / maruthi
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What are the ETL Testing Operations?
how do u really know that paging to disk is happening while u are using a lookup transform?
Explain and compare etl & manual development?
diff b/w dwh & data mart diff b/w star schema & snow flake schema diff b/w fact table & dimension table what are the contents in requirement specification what are the docs needed for testing draw ur proj architecture
Hi, I completed MCA in 2006.After studied Informatica,SQL server and basics of reporting tool in one of the training center in chennai.I got subject knowledge only.But I didn't go any job because I scared to face real time.Anyone please advice how can I enter again into this and anyone provide real time exposure with project.
How to increase performance without changing anything in mapping.( In prod)
how do u extract data from different data sources explain with an example?
What are the types of Data Warehouse applications?
can Informatica be used as a cleansing tool? If yes, give examples of transformations that can implement a data cleansing routine.
where we cannot use sorter Transformation. if we use then we will not get correct data?
What are the names of the layers in etl?
What is a lookup table in etl?
What is full load & incremental or refresh load?
what is the difference steps for data modeling?
Explain the difference between etl tool and olap tools?
