how do u decide whether u need to do aggregations at database level or at Informatica level?

1 Answers   QualTech,

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What is the difference between Data Warehousing and Data Mining?

0 Answers  

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What are the differences between sql override and update override?

0 Answers  

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what are the different forms of normalization?

2 Answers  

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Explain the key challenges that you face while performing etl testing.

0 Answers  

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what is meant by drill through?(Mascot)

1 Answers  

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what are the concerns of OLTP and DSS systems?

0 Answers   TCS,

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How to Check the source record count from traget table.

5 Answers   IBM,

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Can there be sub steps of etl steps?

0 Answers  

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what is the meaning of upgradation of Repository?

0 Answers   IBM,

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Hi can anyone write query for the below input and output Table 1 col 1 100 Null 200 300 Table 2 col1 Null 400 700 800 o/p 200 700 800 2)sql col 1 contains 23x-5-45 26x-12-45 28x-10-50 o/p middlevalue should be greater than 10

0 Answers   Cap Gemini,

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What is Relational Integrity?

1 Answers  

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