For nontemporal tables, an asterisk (*) in a select list causes all table columns to be returned by the SELECT statement. For temporal tables with any qualifier other than nonsequenced, only the nontemporal columns from the original table are returned. To have temporal columns from the original table returned with SELECT statements that use the asterisk to return all nontemporal columns, preface the asterisk with the table name and a period, and follow the asterisk with a comma, then list the temporal columns (or component columns of a temporal column defined as a derived period type) to be returned with the nontemporal columns.
Example: Using asterisks in select lists
SELECT * FROM policy; Policy_ID Customer_ID Policy_Type Policy_Details --------- ----------- ----------- ------------------ 541077 766492008 AU STD-CH-344-YXY-00 541008 246824626 AU STD-CH-345-NXY-00 541145 616035020 AU STD-CH-348-YXN-01 SELECT policy.*, validity FROM Policy; Policy_ID Customer_ID Policy_Type Policy_Details Validity --------- ----------- ----------- ----------------- ------------------------ 541077 766492008 AU STD-CH-344-YXY-00 ('09/12/21', '99/12/31') 541008 246824626 AU STD-CH-345-NXY-00 ('09/10/01', '99/12/31') 541145 616035020 AU STD-CH-348-YXN-01 ('09/12/03', '10/12/01')
Valid-time columns cannot be referenced in SEQUENCED VALIDTIME queries that include a period of applicability.