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DBMS Korth Edition 4 Exercise 12 Question 1 (Page No. 489)

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DBMS Korth Edition 4 Exercise 12 Question 4 (Page No. 489)
Is it possible in general to have two primary indices on the same relation for different search keys ? Explain your answer.
Is it possible in general to have two primary indices on the same relation for different search keys ? Explain your answer.
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akash.dinkar12 asked Apr 1, 2019
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DBMS Korth Edition 4 Exercise 12 Question 3 (Page No. 489)
What is the difference between a primary index and a secondary index ?
What is the difference between a primary index and a secondary index ?
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akash.dinkar12 asked Apr 1, 2019
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DBMS Korth Edition 4 Exercise 12 Question 2 (Page No. 489)
Since indices speed query processing, why might they not be kept on several search keys ? List as many reasons as possible.
Since indices speed query processing, why might they not be kept on several search keys ? List as many reasons as possible.
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