What is the main difference between star and snowflake star schema? Which one is better and why?
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What is the capacity of power cube?
Explain what is the data type of the surrogate key?
What a static and local variable?
What is a real-time data warehouse? How is it different from near to real-time data warehouse?
in general which algorithms for used?
What is the 4 + 1 view model as it relates to system modeling?
What is the limit to the number of sources and targets you can have in a mapping?
Tell me what is full load & incremental or refresh load?
what is indexing ? what are different types of indexes supported by oracle ?
In a star schema, are foreign key constraints between facts and dimensions neccessary?
Explain what is type 2 version dimension?
How to load the time dimension?