Abstract
Mutable state is traditionally implemented in Prolog and other (C)LP systems by performing dynamic modifications to predicate definitions at runtime, i.e. to dynamic predicates of the internal database. Dynamic facts are often used to store information accessible per module or globally and which can be preserved through backtracking. These database updates, despite the obvious drawback of their non-declarative nature, have practical applications and they are given a practical semantics by the so-called logical view of (internal) database updates.
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Correas, J., Gomez, J.M., Carro, M., Cabeza, D., Hermenegildo, M.: A Generic Model for Persistence in CLP Systems. Technical Report CLIP3/2003.0, Technical University of Madrid, School of Computer Science, UPM (August 2003), http://clip.dia.fi.upm.es/papers/persdb-tr.pdf
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Correas, J., Gómez, J.M., Carro, M., Cabeza, D., Hermenegildo, M. (2003). A Generic Persistence Model for (C)LP Systems. In: Palamidessi, C. (eds) Logic Programming. ICLP 2003. Lecture Notes in Computer Science, vol 2916. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-24599-5_33
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DOI: https://doi.org/10.1007/978-3-540-24599-5_33
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