Of course I don't want it. But I don't know how to "avoid from selecting the dupes in select statement (I mean my case, I'm making selection into #QueryTable...

Choose the one that you need here:

http://sqljunkies.com/WebLog/amachanic/archive/2004/11/10/5065.aspx?Pending=true

after using one of the functions (see on the page, which address is above) I received the following temporary table named #QueryTable...

Thanks, I've found right decision (using function instead of cursor). Everything's work great.