SELECT STATEMENT IN N-DECLARATIVE LANGUAGE
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 operat...
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| Main Author: | |
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| Format: | Article |
| Language: | Russian |
| Published: |
Don State Technical University
2011-08-01
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| Series: | Advanced Engineering Research |
| Subjects: | |
| Online Access: | https://www.vestnik-donstu.ru/jour/article/view/819 |
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| Summary: | 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. |
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| ISSN: | 2687-1653 |