H. W. DAVIS ArD L. E. WNSLOW, "Recursion in Retrieval Languages," technical report, Computer Science Dept., Wright State University, Dayton, Ohio, 1979. Also, The retrieval power of predicate calculus based query languages, in "Proceedings, ACM Computer Science Conference, Dayton, Ohio, Feb. 1979."  Home/Search   Document Not in Database   Summary   Related Articles

....various approaches, one of which involves embedding a query language such as Query byExample or SQL into a programming language such as Cobol, PL 1, etc. see, e.g. 19] A seco.nd approach is to add constructs such as summing a column in a relation, or obtaining the length in bits, of a field [14], operations that may (depending on the formalism) violate the consistency criterion. A third approach, suggested by [4] and indicated by our results, is that of augmenting relational algebra or predicate calculus with constructs such as transitive closure, fixpoint operators, while do, or other ....

H. W. DAVIS ArD L. E. WNSLOW, "Recursion in Retrieval Languages," technical report, Computer Science Dept., Wright State University, Dayton, Ohio, 1979. Also, The retrieval power of predicate calculus based query languages, in "Proceedings, ACM Computer Science Conference, Dayton, Ohio, Feb. 1979."

Online articles have much greater impact   More about CiteSeer.IST   Add search form to your site   Submit documents   Feedback  

CiteSeer.IST - Copyright Penn State and NEC