what is query optimizer? what are different types of optimizer s supported by oracle ?

1 Answers   ABC,

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what is Materialized Views?

2 Answers   Syntel,

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What is the 4 + 1 view model as it relates to system modeling?

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Best institute for MS BI training in Hyderabad, India?

4 Answers  

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How to handle time period attribute for time dependent data?? a.)add time period as a part of pk b.)add time period simply and make it nullablec.)add time period simply and make it not null.

1 Answers  

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a perceptron has two inputs x1,x2 wih weights w1,w2and bias weight of w0. the activation function of perceptron is h(x).the output of perceptron

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What are the different methods of loading dimension tables?

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What is the data type of the surrogate key?

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three ways sql*loader could load data, what are those three types?

1 Answers  

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Explain techniques of error handling - ignore , rejecting bad records to a flat file , loading the records and reviewing them (default values)?

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What is up date strategy and what are th options for update strategy?

2 Answers  

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What is edw?

0 Answers  

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