What are the approaches used by optimizer during execution plan?


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More Data Warehouse General Interview Questions

What is degenerate dimension table?

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Explain the main differences between star and snowflake schema?

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Can you state some of the innovations throughout history?

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Explain 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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What is the goal of optimizer?

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What are cursors?

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How to answer the question how many fakt table in your datawarehouse and what size it have?

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What is the difference between aggregate table and materialized view?

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