# 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)

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.

• ### Project name: Database Model

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.

• ### Some properties of the positive boolean dependencies in the database model of block form

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.

• ### A fuzzy probabilistic relational database model and algebra

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.

• ### Database Modeling & Design Fourth Edition- P6

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.

• ### Database Modeling & Design Fourth Edition- P1

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.

• ### Database Modeling & Design Fourth Edition- P2

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.

• ### Database Modeling & Design Fourth Edition- P3

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.

• ### Database Modeling & Design Fourth Edition- P4

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.

• ### Database Modeling & Design Fourth Edition- P7

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.

• ### Database Modeling & Design Fourth Edition- P8

Database Modeling & Design Fourth Edition- P8

• ### Database Modeling & Design Fourth Edition- P15

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.

• ### Database Modeling & Design Fourth Edition- P21

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.

• ### Database Modeling & Design Fourth Edition- P24

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.

• ### Database Modeling & Design Fourth Edition- P30

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.

• ### Database Modeling & Design Fourth Edition- P36

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.

• ### Database Modeling & Design Fourth Edition- P37

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.

• ### Database Modeling & Design Fourth Edition- P38

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.

• ### Database Modeling & Design Fourth Edition- P5

Database Modeling & Design Fourth Edition- P5

• ### Database Modeling & Design Fourth Edition- P9

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.