Oracle数据库自定义类型--对象类型

oracle支持3种用户自定义数据类型：对象类型、嵌套表类型、可变数组类型

创建对象类型

create or replace type schoolType as object (
	name varchar2(30),
	city varchar2(30),
	street varchar2(30)
);

删除对象类型

drop type schoolType;

基于对象类型创建表

create table school_infor of schoolType;

create table  student_infor(
name varchar(10),
id number,
school schoolType
);

insert into school_infor values (schoolType('北大','北京','中关村'));

insert into student_infor values ('小猫',111,schoolType('北大','北京','中关村'));