Stored procedures and create procedure

Stored procedures and create procedure

A stored procedure is a pre-compiled collection of SQL statements and control flow logic that can be stored in a database and executed later as a single unit. Stored procedures are used to improve database performance, simplify database administration, and enhance security by controlling access to database resources.

To create a stored procedure in SQL Server 2008, you can use the following syntax:

sql

CREATE PROCEDURE procedure_name [ { @parameter [ data_type [ = default ] [ OUTPUT ] ] } [ ,...n ] ] AS BEGIN -- SQL statements and control flow logic here END

Here is an example of a stored procedure that takes a parameter and returns the count of employees in a given department:

sql

CREATE PROCEDURE CountEmployeesByDepartment @department_id int AS BEGIN SELECT COUNT(*) AS EmployeeCount FROM Employees WHERE DepartmentID = @department_id END

To execute the stored procedure, you can use the following syntax:

sql

EXEC CountEmployeesByDepartment @department_id = 1

This will execute the stored procedure with the department_id parameter set to 1, and return the count of employees in that department.

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