SET SERVEROUTPUT ON for PL/SQL : serveroutput « SQL PLUS Session Environment « Oracle PL/SQL Tutorial

1. Oracle PL/SQL Tutorial
2. SQL PLUS Session Environment
3. serveroutput

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>