Скачать или смотреть How to Analyze Query Performance with Indexes

Analyzing query performance is a critical step in ensuring that your indexes are effectively improving database efficiency. Query execution plans can provide insight into how queries are being executed and whether indexes are being used optimally. Look for signs of bottlenecks, such as full table scans, which could indicate that an index is missing or not being used. Index hints can be used to influence the query optimizer's choice of indexes, though they should be used sparingly as they can complicate query maintenance. Regularly analyzing index usage can help identify whether indexes are serving their intended purpose or if adjustments are needed. Performance tuning involves a continuous cycle of monitoring, analyzing, and refining both the queries and indexes.