PL SQL : custom data type declaration of the type of this expression is incomplete or malformed function - sql

Question

I have create a package with a function like this :
create or replace
PACKAGE TRANSAC_ERRONNEES AS
TYPE dateArrayVar IS TABLE OF DATE;
FUNCTION calc_date_moyenne(dateArrayIn dateArrayVar
) RETURN DATE;
END TRANSAC_ERRONNEES;
Body :
CREATE OR REPLACE PACKAGE BODY TRANSAC_ERRONNEES AS
FUNCTION calc_date_moyenne(dateArrayIn datearrayvar) RETURN DATE IS
dateFinal DATE;
tempsEnSeconde NUMBER;
tempsMoyenEnSeconde NUMBER;
BEGIN
tempsEnSeconde := 0;
tempsMoyenEnSeconde := 0;
FOR i IN 1..dateArrayIn.count loop
tempsEnSeconde := to_number(to_char(dateArrayIn(i), 'HH24')) * 60 * 60 + to_number(to_char(dateArrayIn(i), 'MI')) * 60 + to_number(to_char(dateArrayIn(i), 'SS'));
tempsMoyenEnSeconde := tempsMoyenEnSeconde+tempsEnSeconde;
end loop;
tempsMoyenEnSeconde := tempsMoyenEnSeconde/dateArrayIn.count;
dateFinal := to_date(TO_CHAR(dateArrayIn(1),'DD-MM-YYYY') || ' ' || TO_CHAR(to_date(tempsMoyenEnSeconde,'sssss'), 'HH24:MI:SS'), 'DD-MM-YYYY HH24:MI:SS');
dbms_output.put_line(TO_CHAR(dateFinal,'DD-MM-YYYY HH24:MI:SS'));
RETURN dateFinal;
END calc_date_moyenne;
END TRANSAC_ERRONNEES;
/
I try to test this function like this :
DECLARE
dates dateArrayVar;
resultat DATE;
BEGIN
dates := dateArrayVar(SYSDATE, SYSDATE);
resultat := transac_erronnees.calc_date_moyenne(dates);
END;
I'm getting this following error :
PLS-00320: the declaration of the type of this expression is
incomplete or malformed
Please let me know the error. Thanks in advance.

Answer 1

You are using it in incorrect way. You need to use array with extend to assign memory and then assign value in it.
DECLARE
dates dateArrayVar;
resultat DATE;
BEGIN
dates.extend(2); -- Since you want to assign two values, extend by 2
dates(1) := SYSDATE;
dates(2) := SYSDATE;
resultat := transac_erronnees.calc_date_moyenne(dates);
END;
Update: Second thing is that DateArrayVar has scope only within the package that you have created, in the anonymous block, Oracle cannot see that declaration. One solution is to create external type that is visible to all other procedures and anonymous block or to test, create a procedure within the package and call it from out side.
create or replace
PACKAGE TRANSAC_ERRONNEES AS
TYPE dateArrayVar IS TABLE OF DATE;
FUNCTION calc_date_moyenne(dateArrayIn dateArrayVar
) RETURN DATE;
PROCEDURE test;
END TRANSAC_ERRONNEES;
/
CREATE OR REPLACE PACKAGE BODY TRANSAC_ERRONNEES AS
FUNCTION calc_date_moyenne(dateArrayIn datearrayvar) RETURN DATE IS
dateFinal DATE;
tempsEnSeconde NUMBER;
tempsMoyenEnSeconde NUMBER;
BEGIN
tempsEnSeconde := 0;
tempsMoyenEnSeconde := 0;
FOR i IN 1..dateArrayIn.count loop
tempsEnSeconde := to_number(to_char(dateArrayIn(i), 'HH24')) * 60 * 60 + to_number(to_char(dateArrayIn(i), 'MI')) * 60 + to_number(to_char(dateArrayIn(i), 'SS'));
tempsMoyenEnSeconde := tempsMoyenEnSeconde+tempsEnSeconde;
end loop;
tempsMoyenEnSeconde := tempsMoyenEnSeconde/dateArrayIn.count;
dateFinal := to_date(TO_CHAR(dateArrayIn(1),'DD-MM-YYYY') || ' ' || TO_CHAR(to_date(tempsMoyenEnSeconde,'sssss'), 'HH24:MI:SS'), 'DD-MM-YYYY HH24:MI:SS');
dbms_output.put_line(TO_CHAR(dateFinal,'DD-MM-YYYY HH24:MI:SS'));
RETURN dateFinal;
END calc_date_moyenne;
PROCEDURE test
dates dateArrayVar;
resultat DATE;
BEGIN
dates.extend(2); -- Since you want to assign two values, extend by 2
dates(1) := SYSDATE;
dates(2) := SYSDATE;
resultat := transac_erronnees.calc_date_moyenne(dates);
END;
END TRANSAC_ERRONNEES;
/
And to test, call it as
BEGIN
TRANSAC_ERRONNEES.TEST;
END;
/

Answer 2

DateArrayVar has scope only within the package
I found the solution : I had to specifiate the package : TRANSAC_ERRONNEES.dateArrayVar;
So :
DECLARE
dates TRANSAC_ERRONNEES.dateArrayVar;
resultat DATE;
BEGIN
dates := TRANSAC_ERRONNEES.dateArrayVar(SYSDATE, SYSDATE);
resultat := transac_erronnees.calc_date_moyenne(dates);
dbms_output.put_line(TO_CHAR(resultat,'DD-MM-YYYY HH24:MI:SS'));
END;
It's works now, Thanks