Can someone tell me how do I create a class in sqldeveloper?

Question

Recently I'm learning sql by myself and it's really tough to me.

For example I'd like create a sql class called XXX and also I'd like add some attributes into the class like country, population, etc.

So how do I write the code? Can anyone show me how to do that with a simple example?

I would fully appreciate for that.

Answer 1

You can create table like this:

create table your_class_table
(
country varchar2(2000 char),
population number
)

then you can insert data into it then select.

Answer 2

You can create a Type like below.

CREATE OR REPLACE TYPE MYCLASS AS OBJECT 
(Country varchar2(30), 
 Population varchar2(30)
); 
/     

CREATE TABLE MYTABLE of MYCLASS;