Query optimization in databases aims to find the most efficient way to execute a given query. For queries involving multiple joins, the order in which these joins are executed (the join order) is crucial for performance. The goal is to minimize the cost of execution, which is often achieved by minimizing the size of intermediate relations generated during the join process.
In query optimization, why is join order important when dealing with multiple joins? - Question not attempted
Asked in Analyst Cum Programmer (Deputy Director) 2024 · Topic: Basics of Computers and Information Technology (Database Management Systems (DBMS) Basics: Concepts, Types of Databases)
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Answer: A. Join order affects the size of intermediate res‐ ults
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