A temporal table is a table that maintains the history of its data and the time period when its data are valid. Temporal tables are used in Oracle GoldenGate to keep track of all the old rows that are deleted or updated in the table. Temporal tables are also used to maintain the business validity of its rows and data. For example, Oracle GoldenGate keeps track of the time period during which a row is valid. There are three types of temporal tables, system-period, application-period, and bitemporal table.