存储过程是SQL语句和过程逻辑的命名集合，即编译、验证并存储在服务器数据库中。存储过程通常被视为其他数据库对象，并通过服务器安全机制进行控制。

存储过程是SQL语句和过程逻辑的命名集合，即编译、验证并存储在服务器数据库中。存储过程通常被视为其他数据库对象，并通过服务器安全机制进行控制。

一般来说，存储过程是一个“SQL函数”。他们有:

-- a name
CREATE PROCEDURE spGetPerson
-- parameters
CREATE PROCEDURE spGetPerson(@PersonID int)
-- a body
CREATE PROCEDURE spGetPerson(@PersonID int)
AS
SELECT FirstName, LastName ....
FROM People
WHERE PersonID = @PersonID

这是一个以T-SQL为重点的示例。存储过程可以执行大多数SQL语句，返回标量值和基于表的值，并且被认为更安全，因为它们可以防止SQL注入攻击。

想想这样的情况，

You have a database with data. There are a number of different applications needed to access that central database, and in the future some new applications too. If you are going to insert the inline database queries to access the central database, inside each application's code individually, then probably you have to duplicate the same query again and again inside different applications' code. In that kind of a situation, you can use stored procedures (SPs). With stored procedures, you are writing number of common queries (procedures) and store them with the central database. Now the duplication of work will never happen as before and the data access and the maintenance will be done centrally.

注意:

In the above situation, you may wonder "Why cannot we introduce a central data access server to interact with all the applications? Yes. That will be a possible alternative. But, The main advantage with SPs over that approach is, unlike your data-access-code with inline queries, SPs are pre-compiled statements, so they will execute faster. And communication costs (over networks) will be at a minimum. Opposite to that, SPs will add some more load to the database server. If that would be a concern according to the situation, a centralized data access server with inline queries will be a better choice.

存储过程是一个预编译的SQL语句集，它执行一些特定的任务。 存储过程应该使用EXEC单独执行 存储过程可以返回多个参数 存储过程可用于实现事务

“什么是存储过程”已经在这里的其他帖子中回答过了。我将要发布的是一种不太为人所知的使用存储过程的方法。它对存储过程进行分组或对存储过程进行编号。

语法参考

； 按此编号

可选整数，用于对同名过程进行分组。可以使用一个DROP PROCEDURE语句将这些分组的过程放到一起

例子

CREATE Procedure FirstTest 
(
    @InputA INT
)
AS 
BEGIN
    SELECT 'A' + CONVERT(VARCHAR(10),@InputA)
END
GO

CREATE Procedure FirstTest;2
(
    @InputA INT,
    @InputB INT
)
AS 
BEGIN
    SELECT 'A' + CONVERT(VARCHAR(10),@InputA)+ CONVERT(VARCHAR(10),@InputB)
END
GO

Use

exec FirstTest 10
exec FirstTest;2 20,30

结果

另一个尝试

CREATE Procedure SecondTest;2
(
     @InputA INT,
    @InputB INT
)
AS 
BEGIN
    SELECT 'A' + CONVERT(VARCHAR(10),@InputA)+ CONVERT(VARCHAR(10),@InputB)
END
GO

结果

Msg 2730，级别11，状态1，程序SecondTest，行1[批量启动行3] 无法创建组号为2的过程“SecondTest”，因为数据库中当前不存在同名且组号为1的过程。 必须先执行CREATE PROCEDURE 'SecondTest';

引用:

使用数字语法创建过程 在SQL Server中编号的存储过程 对存储过程进行分组- sqlmag .

谨慎

对过程进行分组后，就不能单独删除它们了。 此功能可能会在Microsoft SQL Server的未来版本中删除。