General theoretical-set constructions of complete image, restriction, compatibility: properties and applications
The article is devoted research of general properties of set-theoretic constructions, which are used, in particular, in the theory of relational databases at research of table algebra, which upbuild on the basis of classic Codd‟s relational algebra. The whole image of set relatively a binary relatio...
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| Date: | 2026 |
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| Main Authors: | , , |
| Format: | Article |
| Language: | Ukrainian |
| Published: |
PROBLEMS IN PROGRAMMING
2026
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| Subjects: | |
| Online Access: | https://pp.isofts.kiev.ua/index.php/ojs1/article/view/868 |
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| Journal Title: | Problems in programming |
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Problems in programming| Summary: | The article is devoted research of general properties of set-theoretic constructions, which are used, in particular, in the theory of relational databases at research of table algebra, which upbuild on the basis of classic Codd‟s relational algebra. The whole image of set relatively a binary relation and of distribution of unary (binary) partial operations on the set with assistance whole image, restriction a binary relation after set, projection of binary relation and consistency relation of binary relations are considered.Problems in programming 2010; 2-3: 80-88 |
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