Demonstrate nested PL/SQL blocks : Code Block « PL SQL Programming « Oracle PL/SQL Tutorial

1. Oracle PL/SQL Tutorial
2. PL SQL Programming
3. Code Block

SQL>
SQL> declare
  2     v_custno                NUMBER := 100;
  3  begin
  4     dbms_output.put_line(v_custno) ;
  5     declare
  6             v_state         CHAR(2):= 'NY' ;
  7     begin
  8             dbms_output.put_line(v_custno || v_state) ;
  9     end ;
 10  end ;
 11  /
100
100NY

PL/SQL procedure successfully completed.

SQL>
SQL>
SQL>