![]() For more information, see Recompile a Stored Procedure. Also use OPTIMIZE FOR when you create plan guides. OPTIMIZE FOR can counteract the optimizer's default parameter detection behavior. The WITH RECOMPILE clause can be used into places: One is when you create a procedure, for instance: CREATE PROCEDURE MySP WITH RECOMPILE AS This instructs SQL Server to recompile the entire procedure every time it is called, and never cache the plan. The data type of must be implicitly convertible to the data type that references in the query. can be of any SQL Server system data type that can be expressed as a literal constant. My original plan was to recompile all the objects in the database using the following code but that requires sprecompile to work. This option can't be used when FOR REPLICATION is specified or for CLR procedures. - Instructor One of the benefits of the store procedure is that SQL Server can predict how theyll be used and how best to. For more information regarding the reasons for forcing a recompile, see Recompile a Stored Procedure. Again here, the term recompile means that a plan in cache is dropped and recreated. My expectation is that sprecompile would cause the function to be recompiled however, that is either not happening or that is not good enough to update the values return by A. RECOMPILE Indicates that the Database Engine doesn't cache a query plan for this procedure, forcing it to be compiled each time it is executed. Apparently SQL server still only creates one plan for the store procedure, therefore if the procedure is still executing when another user attempts to execute the procedure the second user is forced to wait for the first to finish before SQL will kill the previous execution plan and build a new one. ![]() is used only during query optimization, and not as the value of during query execution. In SQL 2000, an entire batch (stored procedure, trigger, UDF) would get recompiled, whereas in SQL 2005 and later, the automatic recompiles, only dropped and recreated a plan for a specific statement. ![]() Your requirement is like asking how to define a query where the FROM is defined before the SELECT. Specifies that the Query Optimizer uses statistical data instead of the initial value to determine the value for a local variable during query optimization.Ī literal constant value to be assigned for use with the OPTIMIZE FOR query hint. Using WITH RECOMPILE effectively returns us to SQL Server 2000 behaviour, where the entire stored procedure is recompiled on every execution. As per the syntax documentation the WITH clause, and the procedure options (with includes RECOMPILE ), goes before the AS. ![]() The value is used only during query optimization, and not during query name of a local variable used in a query, to which a value may be assigned for use with the OPTIMIZE FOR query hint. Instructs the Query Optimizer to use a particular value for a local variable when the query is compiled and optimized. Transact-SQL syntax conventions Syntax ::= Because the SQL Server Query Optimizer typically selects the best execution plan for a query, we recommend only using hints as a last resort for experienced developers and database administrators. ![]()
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