current database

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A current database is a conventional database that stores data that is valid now.

For example, if a user inserts "John Smith" into the Staff table of a current database, this asserts that the fact is valid now and until it is subsequently deleted. By contrast, a temporal database qualifies each row with a valid time stamp, valid time period or valid time interval. For example, we can assert the fact that "John Smith" was a member of staff during the period 1 June 2001 and now. As of 2006, current databases were the most common type of database in use.{{citation needed|date=March 2023}} The concept of now is discussed in Clifford et alia (1997).{{cite book |last=Karagiannis |first=Dimitris |date=1994-08-24 |title=Database and Expert Systems Applications: 5th International Conference, DEXA'94, Athens, Greece, September 7 - 9, 1994. Proceedings |publisher=Springer Science & Business Media |isbn=978-3-540-58435-3 |url=https://books.google.com/books?id=0eIyGy4dU1YC&q=current+database+is+a+conventional+database&pg=PA259}}