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How do I create a SQL plan?
In SQL Server Management Studio, on the File menu, choose Open, and then click File. In the Open File dialog box, set Files of type to Execution Plan Files (*. sqlplan) to produce a filtered list of saved XML query plan files. Select the XML query plan file that you want to view, and click Open.
How do I optimize a SQL procedure?
Improve stored procedure performance in SQL Server
- Use SET NOCOUNT ON.
- Use fully qualified procedure name.
- sp_executesql instead of Execute for dynamic queries.
- Using IF EXISTS AND SELECT.
- Avoid naming user stored procedure as sp_procedurename.
- Use set based queries wherever possible.
- Keep transaction short and crisp.
What is SQL plan?
A query plan (or query execution plan) is a sequence of steps used to access data in a SQL relational database management system. Because query optimizers are imperfect, database users and administrators sometimes need to manually examine and tune the plans produced by the optimizer to get better performance.
How to generate a plan in SQL Server?
The example first executes the SQL statement to generate a plan in the plan cache. For the purposes of this example, it is assumed that the generated plan is the desired plan and no additional query tuning is required.
Can you create more than one SQL plan guide?
You can create more than one OBJECT or SQL plan guide for the same query and batch or module. However, only one plan guide can be enabled at any given time.
Why do we need a SQL execution plan?
This is because the plan tells us what to tune, by showing how the query is internally executed with presentation for the execution road map, the most expensive part of the query, signs that help in writing the query in the best way and the recommended indexes.
Can a fixed query plan be applied to a SQL plan guide?
You can apply a fixed query plan to a plan guide of type OBJECT or SQL. Plan guides that apply a fixed query plan are useful when you know about an existing execution plan that performs better than the one selected by the optimizer for a particular query.