Parameter Sensitive Plan Optimization, Why?
Introduction
Parameter sensitivity is a feature of SQL Server that enables the query optimizer to optimize a query plan based on the values of parameters used in the query. By understanding the values of parameters used in a query, the query optimizer can create a plan that is more efficient and accurate than the plan created without parameter values. In this blog post, we will discuss what parameter sensitivity is, why it is important, and how it is used in SQL Server.
What is Parameter Sensitivity?
Parameter sensitivity is the ability of the query optimizer to create a query plan based on the specific values of parameters used in the query. By understanding the values of parameters, the query optimizer can create a plan that is more efficient and accurate than the plan created without parameter values. This improved plan can lead to improved query performance.
Why is Parameter Sensitivity Important?
Parameter sensitivity is important because it enables the query optimizer to optimize a query plan based on the specific values of parameters used in the query. By understanding the values of parameters, the query optimizer can create a plan that is more efficient and accurate than the plan created without parameter values. This improved plan can lead to improved query performance.
How is Parameter Sensitivity Used in SQL Server?
Parameter sensitivity is used in SQL Server to create a query plan that is more efficient and accurate than the plan created without parameter values. The query optimizer uses the values of parameters to determine the best plan to use for a query. This plan is then used to execute the query.
What are the Benefits of Parameter Sensitivity?
The benefits of parameter sensitivity are improved query performance, improved accuracy of query results, and improved scalability. By understanding the values of parameters, the query optimizer can create a plan that is more efficient and accurate than the plan created without parameter values. This improved plan can lead to improved query performance, improved accuracy of query results, and improved scalability.
Conclusion
Parameter sensitivity is an important feature of SQL Server that enables the query optimizer to optimize a query plan based on the values of parameters used in the query. By understanding the values of parameters, the query optimizer can create a plan that is more efficient and accurate than the plan created without parameter values. This improved plan can lead to improved query performance, improved accuracy of query results, and improved scalability.
Popular Questions
* What is Parameter Sensitivity?
* Why is Parameter Sensitivity Important?
* How is Parameter Sensitivity Used in SQL Server?
* What are the Benefits of Parameter Sensitivity?
* How Can I Implement Parameter Sensitivity?
