We propose a generalized relational model for a temporal database which allows time stamping with respect to a Boolean algebra of multidimensional time stamps. The interplay between the various temporal dimensions is symmetric. As an application, a two dimensional model which allows objects with real world and transaction oriented time stamps is discussed. The two dimensional model can be used to query the past states of the database. It can also be used to give a precise classification of the errors and updates in a database, and is a promising approach for querying these errors and updates.
We propose a generabzed relatIonal model for a temporal database which allows time stamping with respect to a Boolean algebra of multldlmenslonal time stampsThe Interplay between the various temporal dimensions IS symmetric As an apphcatlon, a two dlmenslonal model which allows oblects with real worid and transaction orlented time stamps 1s discussed The two dtmenslonal model CM be used to query the past states of the database It can also be used to give a precise classlficatlon of the errors and updates m a database, and IS a promlsmg approach for querying these errors and updates
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