HiHow can I amend my query below to show a zero if nothing is returned?SELECT ststats.company, ststats.depot, ststats.part, ststats.sale_period, ststats.sale_year, ststats.units, "CurrentPeriod".notes AS "Period", "CurrentPeriod".code_value::smallint AS "CurrentPeriod", "CurrentYear".notes AS "Year", "CurrentYear".code_value::smallint AS "CurrentYear" FROM ststats, "CurrentPeriod", "CurrentYear" WHERE ststats.company = "CurrentPeriod".company AND ststats.company = "CurrentYear".company AND ststats.sale_year = "CurrentYear".code_value::smallint AND ststats.sale_period = "CurrentPeriod".code_value::smallint;