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Database models

Xem 1-20 trên 556 kết quả Database models
  • Bài giảng Chương 2: Mô hình cơ sở dữ liệu quan hệ (The Relational Database Model) bao gồm những nội dung về khái niệm, quan hệ, quan hệ và bảng, thuộc tính, bộ và quan hệ, lược đồ quan hệ, các phép toán, đại số quan hệ, ràng buộc toàn vẹn.

    ppt49p cocacola_10 07-12-2015 61 5   Download

  • Project name "Database Model" a description of the persistent data storage perspective of the system. This view is OPTIONAL if there is little or no persistent data, or the translation between the Design Model and the Data Model is trivial.

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  • The report proposes the concept of positive boolean dependency in the database model of block form, proving equivalent theorem of three derived types, necessary and sufficient criteria of the derived type, the member problem... In addition, some properties related to this concept in the case of block r degenerated into relation are also expressed and demonstrated here.

    pdf12p dieutringuyen 07-06-2017 21 1   Download

  • This paper introduces a complete extended relational database model based on probability theory and fuzzy theory, called FPRDB, for representing and handling vague and uncertain information of objects in real world applications. FPRDB is built by first extending probabilistic triples with fuzzy sets, associating the probability of such fuzzy sets for expressing and computing uncertain degree of imprecise information.

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  • Database Modeling & Design Fourth Edition- P6: Database technology has evolved rapidly in the three decades since the rise and eventual dominance of relational database systems. While many specialized database systems (object-oriented, spatial, multimedia, etc.) have found substantial user communities in the science and engineering fields, relational systems remain the dominant database technology for business enterprises.

    pdf5p venus2468 07-11-2010 62 7   Download

  • Database Modeling & Design Fourth Edition- P1: Database technology has evolved rapidly in the three decades since the rise and eventual dominance of relational database systems. While many specialized database systems (object-oriented, spatial, multimedia, etc.) have found substantial user communities in the science and engineering fields, relational systems remain the dominant database technology for business enterprises.

    pdf5p venus2468 07-11-2010 79 6   Download

  • Database Modeling & Design Fourth Edition- P2: Database technology has evolved rapidly in the three decades since the rise and eventual dominance of relational database systems. While many specialized database systems (object-oriented, spatial, multimedia, etc.) have found substantial user communities in the science and engineering fields, relational systems remain the dominant database technology for business enterprises.

    pdf5p venus2468 07-11-2010 70 5   Download

  • Database Modeling & Design Fourth Edition- P3: Database technology has evolved rapidly in the three decades since the rise and eventual dominance of relational database systems. While many specialized database systems (object-oriented, spatial, multimedia, etc.) have found substantial user communities in the science and engineering fields, relational systems remain the dominant database technology for business enterprises.

    pdf5p venus2468 07-11-2010 54 5   Download

  • Database Modeling & Design Fourth Edition- P4: Database technology has evolved rapidly in the three decades since the rise and eventual dominance of relational database systems. While many specialized database systems (object-oriented, spatial, multimedia, etc.) have found substantial user communities in the science and engineering fields, relational systems remain the dominant database technology for business enterprises.

    pdf5p venus2468 07-11-2010 60 5   Download

  • Database Modeling & Design Fourth Edition- P7: Database technology has evolved rapidly in the three decades since the rise and eventual dominance of relational database systems. While many specialized database systems (object-oriented, spatial, multimedia, etc.) have found substantial user communities in the science and engineering fields, relational systems remain the dominant database technology for business enterprises.

    pdf5p venus2468 07-11-2010 43 5   Download

  • Database Modeling & Design Fourth Edition- P8

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  • Database Modeling & Design Fourth Edition- P15: Database technology has evolved rapidly in the three decades since the rise and eventual dominance of relational database systems. While many specialized database systems (object-oriented, spatial, multimedia, etc.) have found substantial user communities in the science and engineering fields, relational systems remain the dominant database technology for business enterprises.

    pdf5p venus2468 07-11-2010 47 5   Download

  • Database Modeling & Design Fourth Edition- P21: Database technology has evolved rapidly in the three decades since the rise and eventual dominance of relational database systems. While many specialized database systems (object-oriented, spatial, multimedia, etc.) have found substantial user communities in the science and engineering fields, relational systems remain the dominant database technology for business enterprises.

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  • Database Modeling & Design Fourth Edition- P24: Database technology has evolved rapidly in the three decades since the rise and eventual dominance of relational database systems. While many specialized database systems (object-oriented, spatial, multimedia, etc.) have found substantial user communities in the science and engineering fields, relational systems remain the dominant database technology for business enterprises.

    pdf5p venus2468 07-11-2010 45 5   Download

  • Database Modeling & Design Fourth Edition- P30: Database technology has evolved rapidly in the three decades since the rise and eventual dominance of relational database systems. While many specialized database systems (object-oriented, spatial, multimedia, etc.) have found substantial user communities in the science and engineering fields, relational systems remain the dominant database technology for business enterprises.

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  • Database Modeling & Design Fourth Edition- P36: Database technology has evolved rapidly in the three decades since the rise and eventual dominance of relational database systems. While many specialized database systems (object-oriented, spatial, multimedia, etc.) have found substantial user communities in the science and engineering fields, relational systems remain the dominant database technology for business enterprises.

    pdf5p venus2468 07-11-2010 42 5   Download

  • Database Modeling & Design Fourth Edition- P37: Database technology has evolved rapidly in the three decades since the rise and eventual dominance of relational database systems. While many specialized database systems (object-oriented, spatial, multimedia, etc.) have found substantial user communities in the science and engineering fields, relational systems remain the dominant database technology for business enterprises.

    pdf5p venus2468 07-11-2010 41 5   Download

  • Database Modeling & Design Fourth Edition- P38: Database technology has evolved rapidly in the three decades since the rise and eventual dominance of relational database systems. While many specialized database systems (object-oriented, spatial, multimedia, etc.) have found substantial user communities in the science and engineering fields, relational systems remain the dominant database technology for business enterprises.

    pdf5p venus2468 07-11-2010 37 5   Download

  • Database Modeling & Design Fourth Edition- P5

    pdf5p venus2468 07-11-2010 46 4   Download

  • Database Modeling & Design Fourth Edition- P9: Database technology has evolved rapidly in the three decades since the rise and eventual dominance of relational database systems. While many specialized database systems (object-oriented, spatial, multimedia, etc.) have found substantial user communities in the science and engineering fields, relational systems remain the dominant database technology for business enterprises.

    pdf5p venus2468 07-11-2010 51 4   Download

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