To resolve slow database queries, optimize indexes, use efficient query structures, and analyze execution plans to identify bottlenecks. You can refer to the following code snippet:

In the above query, we are using:
- Indexing: Speeds up lookups on specific columns, especially in large datasets.
- Query Analysis: EXPLAIN provides insights into execution plans to identify inefficiencies.
- Selective Retrieval: Limiting columns and rows reduces processing overhead and improves performance.