What is surrogate key? Where we use it?
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which automation tool is used in data warehouse testing?
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
What are the different models used in cluster analysis?
Explain if a flat file cotains 1000 records how can I get first and last records only?
What is what are semi-additive and factless facts and in which scenario will you use such kinds of fact tables?
How many types of facts and what are they?
Explain the difference between keylokup and joiner?
Explain dimensional modelling?
What is partitioning? What are the types of partitioning?
What are the different ways to represent the loading of dimension tables?
What are the differences between star and snowflake schema?
What are universe requirements?