Oracle PL/SQL Tutorial/PL SQL Data Types/NATURAL
Define NATURAL type variable
<source lang="sql">
SQL> SQL> SET ECHO ON SQL> SET SERVEROUTPUT ON SQL> DECLARE
2 age NATURAL; 3 4 BEGIN 5 age := 10; 6 DBMS_OUTPUT.PUT_LINE("age:"); 7 DBMS_OUTPUT.PUT_LINE(age); 8 END; 9 /
age: 10 PL/SQL procedure successfully completed. SQL></source>