-- 定义CREATEPROCEDUREQueryById2@sIDINT=101ASSELECT*FROMfruitsWHEREs_id=@sID; 实例:创建带输出参数的存储过程 -- 定义CREATEPROCEDUREQueryById3@sIDINT=101,@fruitscountINTOUTPUTASSELECT@fruitscount=COUNT(fruits.s_id)FROMfruitsWHEREs_id=@sID;-- 执行DECLARE@fruitscountINT;DECLARE@SIDINT=101;EXECQueryB...
T-SQL存储过程 存储过程(stored procedure)有时也称sproc,它是真正的脚本,更准确地说,它是批处理(batch),但都不是很确切,它存储与数据库而不是单独的文件中。 存储过程中有输入参数,输出参数以及返回值等。 TestTalb CREATETABLE[dbo].[TrackLog]([Id][int]IDENTITY(1,1)NOTNULL,[FullName][varchar](200)...
存储过程的优缺点是什么?优点:1.由于应用程序随着时间推移会不断更改,增删功能,T-SQL过程代码会变得更复杂,StoredProcedure为封装此代码提供了一个替换位置。2.执行计划(存储过程在首次运行时将被编译,这将产生一个执行计划-- 实际上是 Microsoft SQL Server为在存储过程中获取由 T-SQL 指定的结果而必须采取的步骤...
1 通过封装实现重用性和逻辑复杂性的隐藏。仅需要通过存储过程的修改(alter procedure)就能应用新的逻辑。 2 减少网络的传输,这是因为存储过程即存储在数据库里,而如果是应用程序方式访问数据库识别有网络传输的成本。 3 存储过程可以提供对数据库进行安全的访问,即赋予了执行存储过程的用户不能直接访问底层的数据库对...
1:create procedure Performance_Solution_Table_Paramters @Temptable Specialtable Readonly2:as3:begin4:select*from @Temptable5:end6:Finally,execute the stored procedure:7:declare @temptable_value specialtable8:insert into @temptable_value select'1','Jone'union select'2','Bill'9:exec dbo.SP_Result...
ALTERTABLEdbo.EmployeesADDCONSTRAINTDF_Employees_update_flagDEFAULT0FORupdate_flag3:Schedule the belowDMLupdate by an appropriate frequency according to your workload4:Update EmployeessetSalary_Tax1=Salary-100WHEREUPDATE_Flag=05:Then you can include the below select query within your stored procedure.6...
A stored procedure returning a boolean value indicating wheter a specified value exists in a table. A transport-level error has occurred when receiving results from the server. (provider: TCP Provider, error: 0 - The semaphore timeout period has expired.) A USE database statement is not all...
This lesson shows you these three steps, and shows you how to create a view and a stored procedure as the object. Note This lesson relies on objects created in Lesson 1 - Create database objects. Complete Lesson 1 before continuing on to lesson 2. Prerequisites To complete this tutorial, ...
You must have EXECUTE permission to execute a stored procedure. You must have SELECT, INSERT, UPDATE, and DELETE permissions to access and change data. The GRANT statement is also used for other permissions, such as permission to create tables....
连接成功后,在编辑器中打开下载的Template_StoredProcedure.txt,拷贝文件中的内容粘贴到新建的模板中,然后点击“保存”。 上面是创建一个存储过程模板的过程,创建其它DBMS对象过程类似。 2)如何使用模板? 创建好模板后,下面就演示如何使用模板了。 首先在模板浏览器中,双击刚刚创建的存储过程模板,弹出身份验证对话框,输...