I have a view and a trigger that overwrites UPDATE. I try to understand the code, however I am having some troubles with line `from deleted` and `from inserted` - Are these automatically created by original update? Does it mean that if I call this trigger, first the update gets called and then the trigger?

```
create trigger updateView on View
instead of UPDATE as
begin
    declare @nameK VARCHAR(100), @addresK VARCHAR(100), @nameZ VARCHAR(100), @number INT, @date DATE;
    declare @nameKo VARCHAR(100), @addresKo VARCHAR(100), @nameZo VARCHAR(100), @numbero INT, @dateo DATE; -- 'o'ld

    declare insCur cursor for select name, addres, bandName, number, date from inserted;
    declare delCur cursor for select name, addres, bandName, number, date  from deleted;
    open insCur;
    open delCur;
    ...

```