Abstract: Temporal integrity constraints are used to ensure the correctness of the data in temporal database. To avoid the appearance of inconsistent data with temporal semantics model, relevant theories of temporal integrity should be studicd,which also provide theoretical support for implementation of temporal updating operations. Based on temporal relational model (TRM)，this paper gave an integral definition of temporal integrity constraints in the temporal extensions to traditional integrity constraints, and studied the concrete processing mechanism in detail when some manipulating operations violate temporal integrity constraints. Some of the proposed processing mechanisms for temporal integrity constrains were realized in TempDB. This study not only provides the theory and implementation basis for temporal data integrity constraints in TempDB, but also has important reference value for the further perfection of the theories and relevant implementation techniques of temporal database.

Key words: Temporal database,Temporal integrity,Temporal entity integrity,Temporal referential integrity