Code Inspection: Forward declaration without definition

Reports declarations of procedures and functions that are missing their implementation in code.

In Oracle, you can declare a procedure or a function without its body, and write the implementation later. The inspection will report names of such procedures or functions that are left without implementation.

Example (Oracle):

DECLARE PROCEDURE foo(a int, b varchar2);
BEGIN
    NULL;
END;

The foo procedure is declared but is missing implementation. We can add the implementation to get rid of the error.

DECLARE PROCEDURE foo(a int, b varchar2);
  PROCEDURE foo(a int, b varchar2) IS
BEGIN
    NULL;
END;
BEGIN
    NULL;
END;