DATABASE SYSTEM CONCEPTS (LOOSELEAF)
7th Edition
ISBN: 9781260515046
Author: SILBERSCHATZ
Publisher: MCG
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Chapter 14, Problem 14PE
Explanation of Solution
Preferable type of index:
The B-Tree index would be preferable for the following problem.
Consider a relation having the x, y coordinates and names of restaurants. Assume the queries are asked of the form: “The query specifies a point and asks if there is a restaurant exactly at the point”.
Justification:
- Since the query given is not a range query and it requires only a point search, this problem is effectively answered by a B-tree index on the pair of attributes (x, y)...
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public Lexer(java.io.Reader reader, Parser yyparser) throws Exception
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Chapter 14 Solutions
DATABASE SYSTEM CONCEPTS (LOOSELEAF)
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