In SQL, a stored procedure is a set of statement(s) that perform some defined actions. We make stored procedures so that we can reuse statements that are used frequently. Stored procedures are thus similar to functions in programming. They can perform specified operations when we call them. C...
存储过程(Stored Procedure)是一组为了完成特定功能的SQL语句集,经编译后存储在数据库中,用户通过指定存储过程的名字并给定参数(如果该存储过程带有参数)来调用执行它。外部程序可以直接调用数据库里面定义好的存储过程,另外数据库内部的触发器(trigger)、或者其他存储过程也可以调用它。 存储过程的优点 (1)执行速度快:...
procedure_demo$#DECLAREprocedure_demo$#BEGINprocedure_demo$#CREATETABLEtest1 (idint);procedure_demo$#INSERTINTOtest1VALUES(1);procedure_demo$#COMMIT;procedure_demo$#CREATETABLEtest2 (idint);procedure_demo$#INSERTINTOtest2VALUES(1);procedure_demo$#ROLLBACK;procedure_demo$#END$$;CREATEPROCEDUREprocedure...
在上面的代码中,CREATE PROCEDURE用于定义存储过程的开始,GetCustomerInfo为存储过程命名,@CustomerID INT为输入参数。接着,BEGIN和END之间的SQL语句会在调用存储过程时执行。执行存储过程的方式是: EXECGetCustomerInfo @CustomerID =1; 这一语句将返回CustomerID为1的客户信息。新手在编写存储过程中,尤其需要注意参数的...
SQL Stored Procedure and Function Anything can be programmable with defined syntax and common lib. 1 ALTER PROCEDURE [dbo].[sp_GetLaborHourPerDayEmployee](@au_Date DATETIME, @au_employeeID VARCHAR(30)) 2 -- Add the parameters for the stored procedure here 3 AS 4 BEGIN 5 -- SET NOCOUNT...
When an application that runs on a workstation calls a stored procedure on a Db2 server, the stored procedure updates a table based on the information that it receives from the application.
cmd.CommandType = CommandType.StoredProcedure; cmd.CommandText=”sp_Select_AllEmployees”; 还记得这两句代码吗?这是在components的源文件中常见的。 虽然可以通过以 SQL 语句的形式传递参数自变量之前的存储过程名称来调用存储过程,但如果使用 ADO.NETCommand对象的Parameters集合,则可以显式地定义存储过程参数并访问输...
Examples Given below are the examples mentioned: We are using the proc_test table to describe an example of a stored procedure in PostgreSQL as follows. Below is the data description of the proc_test table. Code: \d+ proc_test; select * from proc_test; ...
In the simplest sense, this procedure takes a dynamically constructed SQL batch and other parameters, then execute it in the runtime and, finally, it returns the result. Note: In this article’s examples, the sample AdventureWorks database will be used. sp_executesql syntax The following ...
StoredProcedure:生成 SQLServer 存储过程对象和(可选)包含用于创建存储过程的查询的 .sql 文件。 StoredProcedure$registrationVec 包含表示创建存储过程所需的查询的字符串 用法 StoredProcedure (func, spName, ..., filePath = NULL ,dbName = NULL, connectionString = NULL, batchSeparator = "GO") ...