Django_ database CRUD - change and delete

# Bulk edit 
models.Account.objects.filter (username = ' Elina ' ) .Update (password = " Luffy # 21 is " )
 
# A single modified 
obj = models.Account.objects.get (username = ' Linux ' )
obj.username = 'python'
obj.save()
 
 
# Batch delete 
models.User.objects.get (password = ' Oldboy ' ) .Delete ()
 
# Single delete 
obj = models.User.objects.get (the above mentioned id = 3 )
obj.delete()