What is grain of fact?

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give detail on the sales project how many number of dimensions & fact tables are used in projec briefly. how the four fact tables taken in the project.

0 Answers   HCL,

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Hi, can anyone plz share the project architecture for etl testing(banking domain) plz explain the architecture .

0 Answers   Cap Gemini,

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Hi, I've a mapping with flat file source The target update override property for the target table is using update stmt. There is no update strategy between source and target. Also The session has the target properties as Insert , Update as update options checked. Does this mean that recs will be inserted only and the update override will not be applied at all. Thanks

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How to increase performance without changing anything in mapping.( In prod)

0 Answers   IBM, Saama Tech, Wipro,

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what is an ETL or ETT? And what are the different types?

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what are the concerns of OLTP and DSS systems?

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explain the methodology of Data Warehousing?(Polaries)

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what is the meant by Normalization and de-normalization?

2 Answers  

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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.

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Explain etl?

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what is the difference between OLTP database and data warehousing database?

4 Answers  

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