Explain clustering algorithm?
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What are the possible data marts in retail sales?
Explain how to export mappings to the production environment?
What does level of granularity of a fact table signify?
Explain bus schema?
What are parallel querys and query hints?
How to create context?
How does data mining and data warehousing work together?
What is an IDQ file? What is the purpose of the IDQ file and what kindof information does it usualy hold? Can it be imported by informatica?
What are the approaches used by optimizer during execution plan?
Name a few sectors which use data warehousing?
Explain differences between star and snowflake schemas?
When should one use an MD-database (multi-dimensional database) and not a relational one?