Transactions and updates in deductive databases

D. Montesi, E. Bertino, M. Martelli
<span title="">1997</span> <i title="Institute of Electrical and Electronics Engineers (IEEE)"> <a target="_blank" rel="noopener" href="" style="color: black;">IEEE Transactions on Knowledge and Data Engineering</a> </i> &nbsp;
In this paper we develop a new approach providing a smooth integration of extensional updates and declarative query language for deductive databases. The approach is based on a declarative speci cation of updates in rule bodies. Updates are not executed as soon are evaluated. Instead, they are collected and then applied to the database when the query evaluation is completed. We call this approach non-immediate update semantics. We provide a topdown and equivalent bottom-up semantics which re
more &raquo; ... the corresponding computation models. We also package set of updates into transactions and we provide a formal semantics for transactions. Then, in order to handle complex transactions, we extend the transaction language with control constructors still preserving formal semantics and semantics equivalence.
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="">doi:10.1109/69.634755</a> <a target="_blank" rel="external noopener" href="">fatcat:7aczjyznkjg6jarmhozqq7rg64</a> </span>
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