Oracle Package的使用方法如下:
CREATE PACKAGE package_name AS
-- 聲明常量、類型、游標等
-- 聲明存儲過程和函數
END package_name;
CREATE PACKAGE package_name AS
constant_name CONSTANT data_type := value;
type type_name is TABLE OF data_type;
cursor cursor_name is SELECT statement;
END package_name;
CREATE PACKAGE package_name AS
PROCEDURE procedure_name (parameter_list);
FUNCTION function_name (parameter_list) RETURN return_type;
END package_name;
CREATE PACKAGE BODY package_name AS
PROCEDURE procedure_name (parameter_list) IS
BEGIN
-- 存儲過程實現代碼
END procedure_name;
FUNCTION function_name (parameter_list) RETURN return_type IS
BEGIN
-- 函數實現代碼
END function_name;
END package_name;
CALL package_name.procedure_name(parameter_list);
variable := package_name.function_name(parameter_list);
總結:Oracle Package是一種組織存儲過程和函數的方式,通過創建Package和Package Body來定義和實現存儲過程和函數,可以將相關的存儲過程和函數集中在一個Package中,提高了代碼的可重用性和維護性。可以通過CALL語句或者直接調用存儲過程和函數的名稱來調用Package中的存儲過程和函數。