sql游标

DECLARE @username varchar(100)
DECLARE myCusor CURSOR FOR
select username from username
OPEN myCusor
FETCH NEXT FROM myCusor INTO @username
    WHILE @@FETCH_STATUS = 0
    BEGIN
        print @username
        FETCH NEXT FROM myCusor INTO @username
    END
    CLOSE myCusor
    DEALLOCATE myCusor