كل كلمات امتحان الـ IELTS اللى هتحتاجها
12 years ago
This Blog particularized for Oracle Developers ... you will see interesting Codes for SQL , PL/SQL as well as new ideas for Developer Suite and Client Tools that will help you in your professional life ... and I hope I reach for your satisfaction.
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DECLARE
TYPE emplist IS TABLE OF employees.employee_id%TYPE NOT NULL;
v_employees EMPLIST := Emplist(100,150,160,200);
BEGIN
V_employees(3) := NULL; -- assigning NULL raises an error
END;
/
NOT NULL Constraint on Collection Elements
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