Question
Is this Relational Algebra, Expression Operator Tree already optimized? What changes would you make to better optimize this Query? Use Transformation Rules for the Relational
Is this Relational Algebra, Expression Operator Tree already optimized?
What changes would you make to better optimize this Query?
Use Transformation Rules for the Relational Algebra Operations.
By applying transformation rules, the optimizer can transform one relational algebra expression into an equivalent expression that is known to be more efficient.
Project 14 - Query F Identify properties located in Glasgow with rents no higher than $450. propertyNo (o city='glasgow' AND rent 450 (PropertyForRent)) o city = 'glasgow' Property For Rent propertyNo o rent 450 Property For Rent
Step by Step Solution
There are 3 Steps involved in it
Step: 1
The given relational algebra expression represents a query to find properties located in Glasgow wit...
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Step: 2
Step: 3
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Database management systems
Authors: Raghu Ramakrishan, Johannes Gehrke, Scott Selikoff
3rd edition
72465638, 978-0072465631
