stored procedure performance tuning in sql server

I encountered a problem with using the stored procedure today. I used it for the first time. I used the Enterprise Manager to create a stored procedure. I just gave a name and didn't want to write anything in it. I saved it, later I used it, so I opened it for modification. I changed the process name to the parameter t

result set supported by the output parameter (dynamically constructed by the stored procedure, and the content can be changed ). Only applicable to cursor parameters. Default The default value of the parameter. If the default value is defined, the process can be executed without specifying the value of this parameter. The default value must be a constant or null. If the like keyword is used for this pa

Note: The defined SQL statement to execute must be of type nvarcharCREATE PROC P_branchordersalesstatistics@beginTime DateTime,--Start time@endTime DateTime,--End time@branchCode varchar (20),--store code@NewMemberCount int out,--number of new members@OrderCount int out,--order quantity@SalesTotalPrice Decimal (18,2) out,--Sales@ProfitTotalPrice Decimal (18,2) out--gross marginAsBEGINDECLARE @sqlfilter nvarchar (max)DECLARE @sqlmain nvarchar (max)DECL

benefits of Stored procedure functionality Why use stored procedures? The following are some of the major benefits of stored procedure technology: Precompile the execution program. SQL

. Text, ntext, and image parameters can be used as OUTPUT parameters. The output parameters that use outputs keyword can be cursor placeholders.8, NRepresents a placeholder that can specify up to 2,100 parameters.9. {RECOMPILE | Encryption | RECOMPILE, encryption}RECOMPILE indicates that SQL Server does not cache the schedule for this procedure, which is compiled

@userId = @userId; set @UserName = @UserName; set @passDate = @passDate; Set @inOut = @inOut; exec [dbo]. [Sendinfotoremotedb] @CardNo = @CardNo, @CardStyle = @CardStyle, @userId = @userId, @UserName = @UserName, @passDate = @ Passdate, @inOut = @inOutprint ' Send message successfully! ';then the result was first executed successfully, but the second time prompted Ims_srv_lnk to exist and could not be executed. Back to think about the code inside the connection

executed, SQL Manager will go to the procedure cache to fetch the corresponding query statement, ifProcedure cache does not have a corresponding query statement, SQL Manager compiles stored procedures and functions. Procedure Cache: The execution plan is saved, and

To ensure that SQL server returns the correct value or has performance concerns, it intends to re-compile the execution plan without reusing the execution plan cached in the memory, it is called recompile ). Which of the following conditions can cause re-compilation of the stored p