sql stored procedure tutorial for beginners

Tags: style blog http color using OS strong dataThe previous blog describes the use of SQL views, a blog that provides a brief introduction to stored procedures through content and instance applications. In the process of machine room reconstruction, made a big taboo (database design in the reconstruction process was modified), so the impact of a function of the implementation, and then re-knocked the compu

. 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 again at execution time. Use the RECOMPILE o

Stored procedures:A view is an encapsulation of a query statement, while a stored procedure: encapsulates a piece of T-SQL script and encapsulates a logical operation.To create a stored procedure:CREATE proc name parameter table as begin endCase: Go to left and right spacesc

The specific differences between stored procedures and functions are:Core Tip : no difference in nature. Only the function has a limit to return only one scalar, and the stored procedure can return multiple. and functions can be embedded in SQL and can be called in SQL state

Tags: exist out port ipaddr _id compute exe ble tabThe stored procedures in Server SQL are as follows: CREATE procedure Pinsertpc@pcnum int,@pcname varchar (50),@pctype int,@ipaddress varchar (50),@port int,@pcid int OutputAs --declare @pcid intif exists (SELECT * from computertable where pcnum = @pcnum)Set @pcid =-1ElseBeginInsert into computertabl

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 Server only needs to compile each

Procedure name@ Parameter 1 data type [= default value],......@ parameter n data type [= default value]As...........................(2) Calling a stored procedure with input parametersWay One:EXEC usp_score_byparam ' SQL Server BASIC programming ', 70Way two:exec usp_score_byparam @coursename = '

Tags: eighth chapter of modular for loop delete ber based on porting left and right textPL/SQL Stored procedure programming /**author Huangchaobiao*email:[email protected]*/ PL/SQL stored procedure programming (UP)1. Overview of O

following code gives @strsql the SQL code to actually executeSet @strSQL = ' SELECT top ' + str (@PageSize) + ' + @strGetFields + ' from ['+ @tblName + '] where [' + @fldName + '] ' + @strTmp + ' ([' + @fldName + ']) from (select Top + str ((@PageIndex-1) * @PageSi Ze) + ' [' + @fldName + '] from [' + @tblName + '] ' + @strOrder + ') as Tbltmp ' + @strOrderIf @strWhere!= 'Set @strSQL = ' SELECT top ' + str (@PageSize) + ' + @strGetFields + ' from ['+

SQL Server Stored Procedure function encryption and decryption encryption of stored procedures and functions: WITHENCRYPTION! -- [If! SupportLineBreakNewLine] --! -- [Endif] -- CREATEproceduredbo. sp_XML_main @ table_namenvarchar (260), @ dirnamenvarchar (20) WITHENCRYPTIONasbegin ......

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 procedure? In order to ensure that the correct value or performance concerns are ret

View all stored procedures and functionsExec sp_stored_procedures -- or select * from dbo. sysobjects where OBJECTPROPERTY (id, N 'isprocedure ') = 1 order by name View Stored Procedure contentSelect text from syscomments where id = object_id ('stored procedure name') --- o