Compare the cost of two different query plans for the following query: salary > 40000 select (EMPLOYEE
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One plan might be for the following query tree We can use the salary index on EMPLOYEE for the select operation The table in Figure 188a indicates tha...View the full answer
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Related Book For 
Fundamentals of Database Systems
ISBN: 978-0136086208
6th edition
Authors: Ramez Elmasri, Shamkant Navathe
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