Strong type cursor ISSUE Question.

Question

Hello
I have qUestion - Why the strong type cursor during compilation check only the COUNT of values and if ALL types defined in RECORD exist in query?
THIS IS STRONG TYPE CURSOR? A Can write code like below without compilation error! In this case what for me this STRONG TYPE CURSOR? How to avoid this issue ?
Thanks in advance !
CREATE OR REPLACE PACKAGE ML03.B_FIS_EQS_2 AS
TYPE r_Component is record( MODULE_NB char(3),
SERIAL_NB varchar2(30),
TIMESTAMP date,
INPUT_MODE char(1),
Synchronization char(1) );
type CursorComponents is ref cursor return r_Component;
Function F_SelectComponentTag
return CursorComponents;
END B_FIS_EQS_2;
CREATE OR REPLACE PACKAGE BODY ML03.B_FIS_EQS_2 AS
Function F_SelectComponentTag
return CursorComponents IS
C1 CursorComponents;
BEGIN
Open C1 for
select
sysdate,
sysdate,
sysdate,
sysdate,
sysdate
from dual;
return C1;
END F_SelectComponentTag;
END B_FIS_EQS_2;
/

Answer 1

That's just how it's implemented.
SQL pretty much doesn't know PL/SQL records exist so a cursor can't ever actually return a PL/SQL record.
It can however return a result set with the same number of columns and datatypes and that is what is being checked.
I would have to agree that this is probably not exactly what strongly typed generally means in programming.