Insert 0 values in database

[saljuaid]

I have this python code. I am using tk and pyodbc. when I have run this code, it inserts 0 value in user_id column in the database even I haven't enter anything in name_entry entry. how to handle same this problems.
in database: I have created tables and this is the code:

CREATE TABLE test3
( entry_id int IDENTITY(1,1) PRIMARY KEY,
 user_id int  not null,
    user_name VARCHAR  (25) not NULL,
);

and here are python code

   id_id=IntVar()
   id_entry=tk.Entry(root, textvariable=id_id)

   name_name=StringVar()
   name_entry=tk.Entry(root,textvariable=name_name)

   get_id=id_entry.get()
   get_name=name_entry.get()
   cursor.execute("""INSERT INTO test3 (user_id, user_name) VALUES (?,?)""", get_id, get_name)

any help would be greatly appreciated