SQL - Stored Procedures
Overview
Stored procedures are named routines stored in the database. They encapsulate logic and can accept parameters.
DELIMITER //
CREATE PROCEDURE give_raise(IN dept INT, IN pct DECIMAL(4,2))
BEGIN
UPDATE employees SET salary = salary * (1+pct) WHERE department_id = dept;
END //
DELIMITER ;
CALL give_raise(1, 0.10);
DROP PROCEDURE give_raise;
CREATE OR ALTER PROCEDURE dbo.give_raise @dept INT, @pct DECIMAL(4,2)
AS
BEGIN
SET NOCOUNT ON;
UPDATE dbo.employees SET salary = salary * (1+@pct) WHERE department_id = @dept;
END
GO
EXEC dbo.give_raise @dept=1, @pct=0.10;
DROP PROCEDURE dbo.give_raise;
-- SQLite does not support stored procedures; use user-defined functions in host
-- languages or implement logic in the application.