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Explain what are the methodologies of data warehousing?
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What are loops in Datawarehousing?
Explain why dimenstion tables are denormalized in nature?
if we increase the number of dimensions will the rows in fact table increase or decrease??
Explain what is the difference between a primary and secondary actor in use case modeling?
Code the tables statement for a single-level (most common) frequency?
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 is surrogate key? Where we use it? Explain with examples.
How can we schedule the graph in unix?
In a star schema, are foreign key constraints between facts and dimensions neccessary?
Where can one get more info about Data Warehousing?
Can any one explain the hierarchies level data warehousing.
What is bi?
Teradata 
