EQUIVALENCE THEOREM FOR GENERALIZED DEPENDENCIES IN RELATIONAL DATABASES
In this paper, we present some new results related to the differential dependencies in relational databases. The main contributions are the following: (1) To introduce a new concept of generalized differential dependencies; (2) To claim and proof the equivalence theorem of consequences in the world...
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| Format: | Article |
| Language: | English |
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Dalat University
2013-06-01
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| Series: | Tạp chí Khoa học Đại học Đà Lạt |
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| Online Access: | https://tckh.dlu.edu.vn/index.php/tckhdhdl/article/view/246 |
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| _version_ | 1832573990702415872 |
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| author | Nguyễn Xuân Huy Trương Thị Thu Hà |
| author_facet | Nguyễn Xuân Huy Trương Thị Thu Hà |
| author_sort | Nguyễn Xuân Huy |
| collection | DOAJ |
| description | In this paper, we present some new results related to the differential dependencies in relational databases. The main contributions are the following: (1) To introduce a new concept of generalized differential dependencies; (2) To claim and proof the equivalence theorem of consequences in the world of all relations, the word of two-tuple relations and propositional logic for the generalized differential dependencies; (3) To show an equivalence between generalized positive Boolean dependencies and generalized differential dependencies. |
| format | Article |
| id | doaj-art-a72f223599964267b8af2510caecf127 |
| institution | Kabale University |
| issn | 0866-787X |
| language | English |
| publishDate | 2013-06-01 |
| publisher | Dalat University |
| record_format | Article |
| series | Tạp chí Khoa học Đại học Đà Lạt |
| spelling | doaj-art-a72f223599964267b8af2510caecf1272025-02-02T01:46:42ZengDalat UniversityTạp chí Khoa học Đại học Đà Lạt0866-787X2013-06-013210.37569/DalatUniversity.3.2.246(2013)EQUIVALENCE THEOREM FOR GENERALIZED DEPENDENCIES IN RELATIONAL DATABASESNguyễn Xuân Huy0Trương Thị Thu Hà1Institute of Information Technology, Vietnam Academy of Science and TechnologyHanoi University of Business and TechnologyIn this paper, we present some new results related to the differential dependencies in relational databases. The main contributions are the following: (1) To introduce a new concept of generalized differential dependencies; (2) To claim and proof the equivalence theorem of consequences in the world of all relations, the word of two-tuple relations and propositional logic for the generalized differential dependencies; (3) To show an equivalence between generalized positive Boolean dependencies and generalized differential dependencies.https://tckh.dlu.edu.vn/index.php/tckhdhdl/article/view/246Data dependenciesPositive Boolean dependenciesDifferential dependencies. |
| spellingShingle | Nguyễn Xuân Huy Trương Thị Thu Hà EQUIVALENCE THEOREM FOR GENERALIZED DEPENDENCIES IN RELATIONAL DATABASES Tạp chí Khoa học Đại học Đà Lạt Data dependencies Positive Boolean dependencies Differential dependencies. |
| title | EQUIVALENCE THEOREM FOR GENERALIZED DEPENDENCIES IN RELATIONAL DATABASES |
| title_full | EQUIVALENCE THEOREM FOR GENERALIZED DEPENDENCIES IN RELATIONAL DATABASES |
| title_fullStr | EQUIVALENCE THEOREM FOR GENERALIZED DEPENDENCIES IN RELATIONAL DATABASES |
| title_full_unstemmed | EQUIVALENCE THEOREM FOR GENERALIZED DEPENDENCIES IN RELATIONAL DATABASES |
| title_short | EQUIVALENCE THEOREM FOR GENERALIZED DEPENDENCIES IN RELATIONAL DATABASES |
| title_sort | equivalence theorem for generalized dependencies in relational databases |
| topic | Data dependencies Positive Boolean dependencies Differential dependencies. |
| url | https://tckh.dlu.edu.vn/index.php/tckhdhdl/article/view/246 |
| work_keys_str_mv | AT nguyenxuanhuy equivalencetheoremforgeneralizeddependenciesinrelationaldatabases AT truongthithuha equivalencetheoremforgeneralizeddependenciesinrelationaldatabases |