How do you perform sql query optimization ?

Question

Accepted Answer

SQL query optimization involves analyzing and modifying queries to improve performance.

Identify and eliminate unnecessary or redundant queries
Use appropriate indexes to speed up data retrieval
Optimize query structure and syntax
Avoid using wildcard characters at the beginning of a LIKE statement
Minimize the use of subqueries
Use EXPLAIN or query execution plans to identify bottlenecks
Consider denormalizing tables for frequently accessed data
Optimize database schema design
Regularly update statistics and rebuild indexes
Consider caching query results

Accepted Answer

First listen to the customer find out what they're most worried about, Determine wether the customer's meter reading was estimated or actual.Chexk their bills for error in reporting, finding the cause of High energy used beyond seasonal changes such as appliances.malfunctioning appliances or more people in home,Must be ready to discuss the long term solution to high energy costs.which can include payment arrangements, efficiency program or financial assistance

Accepted Answer

Uses Indexes and select only required columns.

How do you perform sql query optimization ?

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