Live ORACLE

<<main>>

DECLARE

  i  NUMBER := 5;

BEGIN

  FOR i IN 1.. 3 LOOP -- assign the values 1,2,3 to i

    dbms_output.Put_line('local: '

                         ||To_char(i)

                         ||' global: '

                         ||To_char(Main.i));

  END LOOP;

END main;

/

Using a Label for Referencing Variables Outside a Loop