ocr: ROW Operation Set Operations Executed on one TOW ati - a lime. Executed on a resuit set of rowS. Will be executed at the FETCH Executed at the EXECUTE stage when the stage, if there isr no set operation cursor is opened. involved. The user - - cans see the first resull The user cannot see the tirst result before the last row iS fetched. until all TOWS are fetched and processed. Example: A full table scan. Example: A full table scan with a GROUP BY clause. Figure 6: Row and set operations.
