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SELECT STATEMENT IN N-DECLARATIVE LANGUAGE

Abstract

Syntax and semantics of the SELECT statement in N-Declarative Language are described. It is shown that for each class in the sense of N-data model the relation containing the attribute values in this informative class can be built up, and the SELECT statement implements the relational algebra operations and other special operations on the subsets of this relationship.

About the Author

Oleg V. Olkhovik
Don State Technical University
Russian Federation


References

1. Ol`xovik O.V. N-model` danny`x / O.V. Ol`xovik, A.V. Bely`x // Izv. YUFU. Ser. Texn. nauki. Tem. vy`p. «Intellektual`ny`e SAPR». – 2009. – # 8. – In Russian.

2. Bely`x A.V. Deklarativny`j yazy`k dlya N-modeli danny`x / A.V. Bely`x, S.M. Kovalyov, O.V. Ol`xovik // Vestn. RGUPS. – 2009. – # 4. – In Russian.

3. Bely`x A.V. Vizual`no-deklarativny`j yazy`k dlya proektirovaniya programmnogo obespecheniya informacionny`x sistem / A.V. Bely`x, S.M. Kovalyov, O.V. Ol`xovik // Vestn. Dons. gos. texn. un-ta. – 2009. – # 4. – In Russian.

4. Date, C.J. Foundation for Future Database Systems: The Third Manifesto / C.J. Date, Hugh Darwen. – 2nd edition. – Addison-Wesley Pub Co, 2000.

5. ISO/IEC-9075-01:2008. Information technology – Database languages – SQL – Part 1: Framework (SQL/Framework): http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=45498 (date of access: 10.03.2011).


Review

For citations:


Olkhovik O.V. SELECT STATEMENT IN N-DECLARATIVE LANGUAGE. Vestnik of Don State Technical University. 2011;11(7):1005-1015. (In Russ.)

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ISSN 2687-1653 (Online)