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Using indexes optimizes query performance.(a) True(b) FalseI had been asked this question in a national level competition.The query is from Using Indexing topic in section Query Optimization of MySQL

Answer»

Correct choice is (a) True

To explain I WOULD say: In MySQL, there are MANY techniques available for optimizing queries. Indexing is the most USEFUL. GENERALLY the one thing that makes the most DIFFERENCE is the proper use of indexes.



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