Database performance tuning involves optimizing the performance of a database by adjusting its configuration, indexing, and queries. This ensures quicker response times and can significantly improve the overall efficiency of your data operations.

Improving database speed can be achieved through techniques such as indexing your tables, optimizing your queries, and regularly reviewing performance metrics. It’s also important to ensure your database hardware meets the demands of your applications.

Indexing allows the database to find and retrieve data faster by creating a reference point for a specific column or set of columns. This can significantly enhance retrieval times, especially for large data sets.

Consider a database upgrade when you notice decreased performance, increased downtime, or if your current version no longer supports necessary features. Upgrading can ensure better performance and new functionalities.

Common performance issues include slow queries, large transaction logs, insufficient memory, and hardware limitations. Regular monitoring can help identify these problems before they escalate.

Monitoring database performance can be done using various tools that track key metrics like query execution time, disk I/O, and memory usage. Regular analysis ensures your database operates efficiently and helps in timely tuning.