Can't believe whomever the editor was didn't catch the missing "y" in the title. They can fix it for you, Sergiy.
Good to see you've finally picked up the pen on SSC.
--Jeff Moden
RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row. First step towards the paradigm shift of writing Set Based code: ________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.
Change is inevitable... Change for the better is not.