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CORAL 1. Class Oriented Ring Associated Language. 2. A deductive database and logic programming system based on Horn-clause rules with extensions like SQL's {group-by} and aggregation operators. CORAL was developed at the University of Wisconsin-Madison. It is implemented in C++ and has a Prolog-like syntax. Many evaluation techniques are supported, including {bottom-up fixpoint evaluation} and top-down backtracking. {Modules} are separately compiled; different evaluation methods can be used in different modules within a single program. Disk-resident data is supported via an interface to the Exodus storage manager. There is an on-line help facility. It requires AT&T C++ 2.0 (or {G++} soon) and runs on Decstation and Sun-4. {(ftp://ftp.cs.wisc.edu/)}. (1993-01-29)
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