在Linux上使用pgAdmin管理存储过程主要包括创建、调用、修改和删除存储过程。以下是详细的步骤:
CREATE OR REPLACE FUNCTION add_numbers(a INTEGER, b INTEGER) RETURNS INTEGER AS $$
BEGIN
RETURN a + b;
END;
$$ LANGUAGE plpgsql;
SELECT add_numbers(3, 4);
CREATE OR REPLACE FUNCTION get_total_count(OUT total INTEGER) AS $$
BEGIN
SELECT COUNT(*) INTO total FROM your_table;
END;
$$ LANGUAGE plpgsql;
-- 调用存储过程并获取结果
SELECT * FROM get_total_count();
CREATE OR REPLACE FUNCTION get_user_count_and_total(OUT user_count INTEGER, OUT total_count INTEGER) AS $$
BEGIN
SELECT COUNT(*) INTO user_count FROM users;
SELECT COUNT(*) INTO total_count FROM orders;
END;
$$ LANGUAGE plpgsql;
-- 调用存储过程并获取结果
SELECT * FROM get_user_count_and_total();
CREATE OR REPLACE FUNCTION
命令重新定义存储过程,替换原有的存储过程。DROP FUNCTION
命令。例如:DROP FUNCTION add_numbers;