Tkinter Treeview showing extra column

Question

I am trying to add scroll bar to my tree view... But i cant figure it out how to do it with my existing code. Moreover i am getting an extra column at starting. can anyone tell me why i am getting this?

Tree View Code

tree = ttk.Treeview(formcontainer, columns=("name", "fathersname", 
"mothersname","rollno","studentid","contact","email","dob"))
tree.heading('name', text="Student Name", anchor=W)
 tree.column("name",minwidth=0,width=100, stretch=NO)
tree.heading('fathersname', text="Father's Name",anchor=CENTER)
tree.column("fathersname",minwidth=0,width=100, stretch=NO)
tree.heading('mothersname', text="Mother's Name", anchor=W)
tree.column("mothersname",minwidth=0,width=100, stretch=NO)
tree.heading('rollno', text="Roll Number", anchor=W)
tree.column("rollno",minwidth=0,width=100, stretch=NO)
tree.heading('studentid', text="Student ID", anchor=W)
tree.column("studentid",minwidth=0,width=100, stretch=NO)
tree.heading('contact', text="Contact", anchor=W)
tree.column("contact",minwidth=0,width=100, stretch=NO)
tree.heading('email', text="Email", anchor=W)
tree.column("email",minwidth=0,width=100, stretch=NO)
tree.heading('dob', text="Date of Birth", anchor=W)
tree.column("dob",minwidth=0,width=100, stretch=NO)
tree.grid(row=0,column=0)

Update Function

def updateview():
    conn = sqlite3.connect('example.db')
    c = conn.cursor()
    t = ('Rahul',)
    records = c.execute("SELECT * FROM students")
    fatcheddata = tree.get_children()
    for elements in fatcheddata:
       tree.delete(elements)
       print (fatcheddata)

    for row in records:
       # print(row)
       tree.insert("", tk.END, values=row)
conn.commit()
conn.close()

Output of the code

Answer 1

That first column is the "tree" part of the treeview. You can hide it by using the show method, which takes a string containing one or both of the words "tree" and "headings". If you don't include "tree", that column will be hidden.

tree = ttk.Treeview(formcontainer, show="headings", columns=...)