Sql Programming Tutorials, Guides & Best Practices

DROP INDEX index_name ON table_name;

For example, to drop the idx_last_name index:

Prometheus collects metrics from your MySQL server, and Grafana provides a powerful dashboard for visualization.

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

Efficient SELECT statements can greatly improve query performance.

Avoid using SELECT * as it retrieves all columns, consuming more resources than necessary. Specify only the columns you need.

• Storage Overhead: Indexes take up extra space.
• Insert/Update Overhead: Slower write operations due to index maintenance.
• Maintenance: Indexes must be maintained and periodically rebuilt.

Use tools like EXPLAIN to understand query execution and identify bottlenecks.