Query Analysis Development Tutorials, Guides & Insights

• Prometheus: Set up a MySQL exporter to collect metrics.
• Grafana: Use Grafana to create custom dashboards and alerts based on Prometheus data.

Percona PMM is a free, open-source platform for managing and monitoring MySQL databases.

The output provides details like:

• Select Type: Type of query (simple, primary, subquery, etc.).
• Table: The table accessed by the query.
• Type: Type of access (e.g., index, ALL, ref, const).
• Possible Keys: Indexes considered by the optimizer.
• Key: Index used for the query.
• Rows: Estimated number of rows examined.
• Extra: Additional information, such as whether a temporary table or file sort is used.