我想创建一个触发器,当我们从nm_employees表中删除值时,会将值输入到表terminate_employees中。我写了触发器,但它不起作用。我的触发器格式是否正确?有任何想法吗?触发器将删除的条目输入到一个新表中 - SQL plus
CREATE TABLE nm_departments(
dept2 varchar(20),
CONSTRAINT empPK PRIMARY KEY (dept2)
);
CREATE TABLE nm_employees(
name varchar(20),
dept varchar(20),
CONSTRAINT departments FOREIGN KEY (dept) REFERENCES nm_departments (dept2)ON DELETE CASCADE
);
CREATE TABLE terminated_employees(
te_name varchar(20),
te_dept varchar(20)
);
CREATE TRIGGER term_employee AFTER DELETE ON nm_employee
FOR EACH ROW
BEGIN
INSERT INTO terminated_employees (NEW.te_name, NEW.te_dept) VALUES (OLD.name,OLD.dept)
END;
“但它似乎不起作用。” - 这不是一个真正的问题。 –