Oracle Database Custom Type - object type

oracle supports three user-defined data types: object type, nested table type, an array type variable

Creating Object Types

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

To delete an object type

drop type schoolType;

Based on the type of object you create a table

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'));