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ISRO | ISRO CS 2017 | Question 12
Consider a table that describes the customers :
Customers(custid, name, gender, rating)The rating value is an integer in the range 1 to 5 and only two values (male and female) are recorded for gender. Consider the query “how many male customers have a rating of 5”? The best indexing mechanism appropriate for the query is
(A)
Linear hashing
(B)
Extendible hashing
(C)
B+ Tree
(D)
Bit-mapped hashing
Answer
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