Entrypoint lastdaylastweek compatible with UTF-8
Input TIMESTAMP date optionally time Output TIMESTAMP date of last day of last week (US)weekday (Saturday) as date with time 00:00:00
TestSQL SELECT '02.05.2009' AS ISCORRECT, F_LASTDAYLASTWEEK('08.05.2009 15:00:00') FROM RDB$DATABASE; SELECT '27.12.2008' AS ISCORRECT, F_LASTDAYLASTWEEK('02.01.2009 15:00:00') FROM RDB$DATABASE;