Extended Update Functionality in Temporal Databases

@inproceedings{Etzion1997ExtendedUF,
  title={Extended Update Functionality in Temporal Databases},
  author={Opher Etzion and Avigdor Gal and Arie Segev},
  booktitle={Temporal Databases, Dagstuhl},
  year={1997}
}
This paper presents an extended update functionality in temporal databases, as a vehicle for supporting simultaneous values semantics. A situation of simultaneous values of a single data item occurs when multiple values that are valid at the same time were assigned to a data item over the database history. In conventional temporal database models there is a xed semantics to handle such a case; if the data item's type is an atom, then only one value is assigned, usually on the basis of the… CONTINUE READING
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