SQL Developer Oracle, how to call procedure? [duplicate]

Question

I have delcared function like this:

CREATE or replace PROCEDURE proc
(
  P_ID IN INTEGER,
  NAME OUT CHAR,
  SURNAME OUT CHAR,
  TOTAL OUT CHAR
)
 AS
    BEGIN
        SELECT NAME, SURNAME, sum(TOTAL) AS TOT
          INTO NAME,SURNAME,TOTAL
          FROM STATISTICS, PLAYERS, PERSON
          WHERE STATISTICS.SID=P_ID AND PERSON.ID=PLAYERS.SID AND      
          STATISTICS.PLAYERS_SID=PLAYERS.SID
        GROUP BY NAME,SURNAME;
END;

Select statement works corectly, but how to call this procedure in Oracle?

I tried something like

EXEC proc(4);

AND

DECLARE
  NAME OUT CHAR,
  SURNAME OUT CHAR,
  TOTAL OUT CHAR

BEGIN
   P_ID := 12 ;
   proc (
   P_ID => P_ID,
   NAME => NAME,    
   SURNAME => SURNAME,
   TOTAL => TOTAL
);
END;

but without any success.

Answer 1

EXEC proc(4);

EXECUTE is a SQL*Plus command.

You have following options:

• EXECUTE in SQL*Plus
• Call it in an anonymous PL/SQL block.
• Run in SQL Developer client tool

Let's see all the three ways:

In SQL*Plus:

SQL> variable v_ename varchar2(20);
SQL> exec get_emp(7788, :v_ename);

PL/SQL procedure successfully completed.

SQL> print v_ename;

V_ENAME
--------------------------------
SCOTT

In an anonymous PL/SQL block:

SQL> CREATE OR REPLACE PROCEDURE get_emp(
  2      i_empno IN emp.empno%TYPE,
  3      o_ename OUT emp.ename%TYPE)
  4  AS
  5  BEGIN
  6    SELECT ename INTO o_ename FROM emp WHERE empno = i_empno;
  7  END;
  8  /

Procedure created.

SQL> SET serveroutput ON
SQL> DECLARE
  2    v_ename VARCHAR2(20);
  3  BEGIN
  4    get_emp(7788, v_ename);
  5    dbms_output.put_line('Employee name is '||v_ename);
  6  END;
  7  /
Employee name is SCOTT

PL/SQL procedure successfully completed.

In SQL Developer client tool:

1. Go to connections on the left pane.
2. Expand the Procedures.

3. Right click on the procedure and select "Run".

4. It will open a new window, provide the Input value and click OK.

5. The output will be shown in Output Log at the bottom as "Output Variables".