procedure with cursor

CREATE OR REPLACE PROCEDURE oppdatering
IS

v_kostnad NUMBER(9);

CURSOR c1 IS
SELECT timeloenn, timer, pnr, pnavn
FROM ansatt, arbeid, prosjekt;

v_c1 c1%ROWTYPE;

BEGIN 
DELETE FROM prokostnad;

OPEN c1;
LOOP
	FETCH c1 INTO v_c1;
	EXIT WHEN c1%NOTFOUND;

	IF v_c1.timeloenn IS NULL THEN
	v_c1.timeloenn := 700;
	END IF;
	
	v_kostnad := v_c1.timeloenn * v_c1.timer * 1.5;

INSERT INTO prokostnad VALUES(v_c1.pnr, v_c1.pnavn, v_kostnad);

END LOOP;
CLOSE c1;

END;
//

LINE/COL ERROR
-------- -----------------------------------------------------------------
6/8      PLS-00341: declaration of cursor 'C1' is incomplete or malformed
7/1      PL/SQL: SQL Statement ignored
7/26     PL/SQL: ORA-00918: column ambiguously defined
10/6     PL/SQL: Item ignored
17/2     PL/SQL: SQL Statement ignored
17/16    PLS-00320: the declaration of the type of this expression is
         incomplete or malformed

20/2     PL/SQL: Statement ignored
20/5     PLS-00320: the declaration of the type of this expression is
         incomplete or malformed

LINE/COL ERROR
-------- -----------------------------------------------------------------

24/2     PL/SQL: Statement ignored
24/15    PLS-00320: the declaration of the type of this expression is
         incomplete or malformed

26/1     PL/SQL: SQL Statement ignored
26/41    PLS-00320: the declaration of the type of this expression is
         incomplete or malformed

26/46    PL/SQL: ORA-00984: column not allowed here