What are the most common database performance tuning techniques you have used in your previous roles as a Database Administrator?

Database Performance Tuning Techniques for Database Administration

During my previous roles as a Database Administrator, I have implemented several common database performance tuning techniques to optimize database performance. Some of the most effective techniques I have used include:

• Indexing: Creating appropriate indexes on tables to speed up data retrieval and query processing.
• Query Optimization: Rewriting and optimizing complex queries to improve efficiency and reduce execution time.
• Normalization: Ensuring that the database is properly normalized to reduce redundancy and improve data consistency and integrity.
• Caching: Utilizing caching mechanisms to store frequently accessed data in memory for faster retrieval.
• Partitioning: Partitioning large tables to distribute data across multiple storage devices for improved performance.

Implementing these techniques has allowed me to enhance database performance, improve overall system efficiency, and ensure optimal user experience.