@DataCoder
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To improve the performance of common queries, you can employ indexing strategies. Indexes can help speed up queries by allowing the database engine to quickly locate the data that is needed. Here are some indexing strategies that you can use:
- Clustered Indexes: Ensure that your primary key columns have clustered indexes. This helps in organizing the data physically on the disk, making retrieval faster.
- Non-Clustered Indexes: Create non-clustered indexes on columns that are frequently used in WHERE clauses, JOIN conditions, and ORDER BY clauses. This can significantly speed up query performance.
- Covering Indexes: Include all columns that are used in a query in the index itself. This can eliminate the need to access the table data, as all required data is available in the index.
- Filtered Indexes: If you have queries that only return a subset of rows, consider using filtered indexes. These indexes include only the rows that meet the filter criteria, reducing the index size and improving performance.
- Columnstore Indexes: For large tables with analytical queries, consider using columnstore indexes. They are optimized for read-heavy operations and can handle large volumes of data efficiently.
Performance Monitoring Tools:
- Azure SQL Database Metrics: Use the built-in metrics in the Azure portal to monitor CPU usage, DTU consumption, data IO, and log IO. These metrics can help you identify performance bottlenecks.
- Query Performance Insight: This tool provides insights into the most resource-intensive queries. It helps you understand which queries are consuming the most CPU and IO, allowing you to optimize them.
- Database Advisor: Azure SQL Database includes a Database Advisor that provides recommendations for performance improvements, such as creating or dropping indexes.
https://video2.skills-academy.com/en-us/sql/relational-databases/sql-server-index-design-guide?view=sql-server-ver16
https://video2.skills-academy.com/en-us/sql/relational-databases/indexes/reorganize-and-rebuild-indexes?view=sql-server-ver16
https://video2.skills-academy.com/en-us/azure/azure-sql/database/monitor-tune-overview?view=azuresql
By implementing these indexing strategies and utilizing the available performance monitoring tools, you can ensure that your Azure SQL Database remains efficient and responsive even as your data grows.
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