When executing a script on SQLPlus, it prints a sequence of numbers instead of output

Question

I\'m trying to execute a script on SQL PLus, it\'s simple.

SET serveroutput ON;
DECLARE
    mode NUMBER(1) := 1;

IF (mode = 1) THEN

    prompt \'HERE\'

EN         


        

Answer 1

You cannot use sqlplus command in plsql.We can use dbms_output instead which will display the output in SQL prompt

SET serveroutput ON;
DECLARE
mode NUMBER(1) := 1;
BEGIN
IF (mode = 1) THEN
dbms_output.put_line('HERE');
END IF;
dbms_output.put_line('fim');
END;
/

Answer 2

Go to your oracle home Oracle\product\<version>\client_2\sqlplus\admin\glogin.sql and add the following lines to enable printing globally,

SET ECHO ON;
SET TERM ON;
WHENEVER SQLERROR EXIT FAILURE ROLLBACK;
SET DEFINE OFF;

Answer 3

From your edited question... you have to terminate the PL/SQL block with a / on a new line to make it end and run, otherwise SQL*Plus will keep prompting for more lines of code (which is the numbers you're seeing). The documentation shows how to run PL/SQL blocks. And prompt is a SQL*Plus command so you can't use it inside a PL/SQL block. You also don't have your block syntax right:

SET serveroutput ON;
DECLARE
    mode NUMBER(1) := 1;
BEGIN
    IF mode = 1 THEN
        DBMS_OUTPUT.PUT_LINE('HERE');    
    END IF;
END;
/

prompt fim