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Navigational accesses in a temporal object model

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3 Author(s)
Bertino, E. ; Dept. of Inf. Sci., Milan Univ., Italy ; Ferrari, E. ; Guerrini, G.

A considerable research effort has been devoted in past years to query languages for temporal data in the context of both the relational and the object oriented model. Object oriented databases provide a navigational approach for data access based on object references. We investigate the navigational approach to querying object oriented databases. We formally define the notion of temporal path expression, and we address on a formal basis issues related to the correctness of such expressions. In particular, we focus on static analysis and give a set of conditions ensuring that an expression always results in a correct access at runtime

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Knowledge and Data Engineering, IEEE Transactions on  (Volume:10 ,  Issue: 4 )