Abstract
This paper describes work carried out on a model for the versioning of class definitions in an Object-oriented database. By defining update and backdate functions on attributes of the previous and current version of a class definintion, instances of any version of the class can be converted to instances of any other version. This allows programs written to access an old version of the schema to still use data created to a changed schema.
This work has been jointly funded by the Science and Engineering Research Council, UK and Zyqad Ltd. Nottinham, UK.
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© 1992 Springer-Verlag Berlin Heidelberg
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Monk, S.R., Sommerville, I. (1992). A model for versioning of classes in object-oriented databases. In: Gray, P.M.D., Lucas, R.J. (eds) Advanced Database Systems. BNCOD 1992. Lecture Notes in Computer Science, vol 618. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-55693-1_31
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DOI: https://doi.org/10.1007/3-540-55693-1_31
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