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Why Is My SQL Query Running So Slow?
Updated on 2022-09-21 GMT+08:00
Why Is My SQL Query Running So Slow?
- You can view the slow SQL logs to check whether any slowly executed SQL queries exist and view their performance characteristics (if any) to locate the cause.
- View the CPU usage metrics of RDS DB instance to facilitate troubleshooting.
- Create read replicas to offload read pressure on primary DB instances.
- When multiple associated tables are queried, indexes must be created for the associated fields.
- Do not use the SELECT statement to scan all tables. You can specify fields or add the WHERE condition.
Parent topic: Performance Issues
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