What is surrogate key? Where we use it?


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More Data Warehouse General Interview Questions

which automation tool is used in data warehouse testing?

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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 models used in cluster analysis?

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Explain if a flat file cotains 1000 records how can I get first and last records only?

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What is what are semi-additive and factless facts and in which scenario will you use such kinds of fact tables?

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How many types of facts and what are they?

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Explain the difference between keylokup and joiner?

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Explain dimensional modelling?

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What is partitioning? What are the types of partitioning?

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What are the different ways to represent the loading of dimension tables?

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What are the differences between star and snowflake schema?

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What are universe requirements?

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