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Bài giảng Cơ sở dữ liệu

Xem 1-20 trên 4162 kết quả Bài giảng Cơ sở dữ liệu
  • Mục đích của bài viết là phản ánh quá trình chuyển đổi số thông qua việc tổng quan tài liệu để hệ thống hóa các khái niệm và xác định các đề xuất khác nhau liên quan đến lộ trình chuyển đổi số đối với cơ sở giáo dục đại học. Bài viết đưa ra một số ví dụ hoạt động chuyển đổi số tại Trường đại học Bách khoa như một trường hợp điển hình. Mời các bạn cùng tham khảo!

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  • Lecture Database management systems: Lesson 1. The main topics covered in this chapter include: database definitions, database history, file processing systems and shortcomings, advantages of database approach,...

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  • Lecture Database management systems: Lesson 2. The main topics covered in this chapter include: more advantages of database approach, disadvantages, data and its levels, database users, some common terms,...

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  • Lecture Database management systems: Lesson 3. The main topics covered in this chapter include: database architecture, data independence, the three-level architecture, logical or conceptual view, conceptual schema,...

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  • Lecture Database management systems: Lesson 4. The main topics covered in this chapter include: continue 3-L architecture, data independence, different aspect of DBMS, inter-schema mappings, external/conceptual mapping, logical data independence, physical data independence,...

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  • Lecture Database management systems: Lesson 5. The main topics covered in this chapter include: database application development process, database design, database development process, design stages, analyze existing system, data flow diagrams, preliminary study of system,...

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  • Lecture Database management systems: Lesson 6. The main topics covered in this chapter include: detailed diagrams, major sub-processes, data dictionary, cross reference matrix, database design phase, database design represents logical structure of the database, database modeling,...

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  • Lecture Database management systems: Lesson 7. The main topics covered in this chapter include: entity-relationship data model, entity type, types of entity types, weak entity types, strong entity type, naming entity types, regular entity type, types of attributes, symbols for attributes,...

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  • Lecture Database management systems: Lesson 8. The main topics covered in this chapter include: key and its different types, relationships in E-R data model, types of relationships, key attributes, simple or composite key, primary key, secondary keys,...

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  • Lecture Database management systems: Lesson 9. The main topics covered in this chapter include: relationships, naming relationships, symbol for relationships, relationships types, binary relationship, attributes of the relationships, ternary relationships, unary relationship,...

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  • Lecture Database management systems: Lesson 10. The main topics covered in this chapter include: minimum cardinality, other notations, roles in relationships, existence dependency, identifier dependency, referential dependency, EE-R data model

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  • Lecture Database management systems: Lesson 11. The main topics covered in this chapter include: gen/spec relationship results inheritance between supertype and subtypes, super-sub type example, specifying constraints, subtype discriminator, disjoint discriminator, overlap discriminator,...

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  • Lecture Database management systems: Lesson 12. The main topics covered in this chapter include: application of E-R data model, we study an example scenario and apply the design phases we have studied so far, data flow diagram and E-R database design, data flow diagram,...

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  • Lecture Database management systems: Lesson 14. The main topics covered in this chapter include: logical database design, introduction to relational data model, strong mathematical foundation, relational data model, mathematical relations, database relations,...

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  • Lecture Database management systems: Lesson 15. The main topics covered in this chapter include: database and math relations, degree and cardinality, relations keys, foreign key, integrity constraints, referential integrity constraint, significance of constraints, designing logical database,...

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  • Lecture Database management systems: Lesson 16. The main topics covered in this chapter include: mapping relationships, binary relationships, minimum cardinality, many to many relationship, binary one to one, unary relationships, super/subtype relationship, data manipulation languages,...

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  • Lecture Database management systems: Lesson 17. The main topics covered in this chapter include: five basic operators, unary operators, binary operators, selects tuples that satisfy a given predicate, Greek symbol sigma, process a selection, degree of the resulting relation,...

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  • Lecture Database management systems: Lesson 18. The main topics covered in this chapter include: types of join, theta join, equijoin, natural join, left outer join, right outer join, outer join, semijoin,...

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  • Lecture Database management systems: Lesson 19. The main topics covered in this chapter include: functional dependency, inference rules, normal forms, first normal form, second normal form, full functional dependence, remember the treatment of multivalued attributes in the mapping process,...

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  • Lecture Database management systems: Lesson 20. The main topics covered in this chapter include: second normal form, insertion anomaly, deletion anomaly, updation aomaly, third normal form, transitive dependency, boyce-codd normal form, higher normal forms,...

    ppt18p wangziyi_1307 26-04-2022 4 0   Download

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