How does query optimization contribute to database performance tuning?
- By improving the security of the database
- By increasing the complexity of SQL queries
- By increasing the storage space of the database
- By reducing the execution time of SQL queries
Query optimization involves improving the efficiency of SQL queries, which in turn reduces the execution time. This is achieved through various techniques such as index optimization, query rewriting, and statistics collection, all aimed at enhancing the performance of database operations.
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