How do you optimize a query that takes too long to execute due to a large dataset?
- Increase database server RAM
- Optimize hardware resources
- Use indexes
- Use subqueries
Indexes can significantly improve query performance by providing a quick lookup mechanism. Increasing RAM and optimizing hardware resources may help, but they are not as directly related to query optimization as using indexes. Subqueries, while powerful, might not always be the most effective solution for large datasets.
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