What is SQL optimization?

SQL optimization is a process of using SQL queries in the best possible way to get accurate and fast database results. The most common database queries are INSERT, SELECT, UPDATE, DELETE, and CALL. These are coupled with subqueries to filter the results. This is where people need to think of optimization to get accurate results with fewer resources and improve database performance.

What is SQL query tuning?

SQL optimization is also known as SQL query tuning. Basically, it is a process of smartly using SQL queries to increase the speed of fetching data and improve overall database performance.

What are the different query optimization techniques?

There are two most common query optimization techniques - cost-based optimization and rule (logic) based optimization. For large databases, a cost-based query optimization technique is useful as it table join methods to deliver the required output. Rule-based optimization combines two or more queries based on relational expressions. The following example illustrates rule-based query optimization.

Top 10 SQL Query Optimization Tips to Improve Database Performance

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