Analysis and Design of Data Systems. Entity Relationship Model. (Lecture 8) презентация
Содержание
- 2. Phases of Database Design
- 3. Phases of Database Design
- 4. Requirements Collection and Analysis
- 5. Conceptual Database Design
- 6. Conceptual Database Schema
- 7. Entity-Relationship Model
- 8. Entity-Relationship Model
- 9. Examples of Entities Types
- 10. Attributes
- 11. Entity Types and Entity Sets
- 12. Types of Attributes
- 13. Simple vs. Composite Attributes
- 14. Another example of a composite attribute
- 15. Single-valued vs. multivalued attributes
- 16. Stored vs. Derived Attributes
- 17. Key Attributes
- 18. Example: Requirements Collection and Analysis “COMPANY”
- 19. Example: Requirements Collection and Analysis “COMPANY”
- 20. Example: Requirements Collection and Analysis “COMPANY”
- 21. Example: Requirements Collection and Analysis “COMPANY”
- 22. Identifying Relationships
- 23. Understanding Relationships
- 24. Representation in ER Schema
- 25. Recursive Relationships
- 26. Representation in ER Schema
- 27. Degree of a Relationship
- 28. Degree of a Relationship
- 29. Constraints on Binary Realtionships
- 30. Cardinality Ratios for Binary Relationships
- 31. Example of 1:1 relationship
- 32. Example of M:N relationship
- 33. Representation in ER Schema
- 34. Participation constraints
- 35. Representation in ER Schema
- 36. Attributes of Relationships
- 37. Weak Entity Types
- 39. Скачать презентацию
Слайды и текст этой презентации
Слайд 1
Описание слайда:
Слайд 2
Описание слайда:
Phases of Database Design
Слайд 3
Описание слайда:
Phases of Database Design
Слайд 4
Описание слайда:
Requirements Collection and Analysis
Слайд 5
Описание слайда:
Conceptual Database Design
Слайд 6
Описание слайда:
Conceptual Database Schema
Слайд 7
Описание слайда:
Entity-Relationship Model
Слайд 8
Описание слайда:
Entity-Relationship Model
Слайд 9
Описание слайда:
Examples of Entities Types
Слайд 10
Описание слайда:
Attributes
Слайд 11
Описание слайда:
Entity Types and Entity Sets
Слайд 12
Описание слайда:
Types of Attributes
Слайд 13
Описание слайда:
Simple vs. Composite Attributes
Слайд 14
Описание слайда:
Another example of a composite attribute
Слайд 15
Описание слайда:
Single-valued vs. multivalued attributes
Слайд 16
Описание слайда:
Stored vs. Derived Attributes
Слайд 17
Описание слайда:
Key Attributes
Слайд 18
Описание слайда:
Example: Requirements Collection and Analysis
“COMPANY”
Слайд 19
Описание слайда:
Example: Requirements Collection and Analysis
“COMPANY”
Слайд 20
Описание слайда:
Example: Requirements Collection and Analysis
“COMPANY”
Слайд 21
Описание слайда:
Example: Requirements Collection and Analysis
“COMPANY”
Слайд 22
Описание слайда:
Identifying Relationships
Слайд 23
Описание слайда:
Understanding Relationships
Слайд 24
Описание слайда:
Representation in ER Schema
Слайд 25
Описание слайда:
Recursive Relationships
Слайд 26
Описание слайда:
Representation in ER Schema
Слайд 27
Описание слайда:
Degree of a Relationship
Слайд 28
Описание слайда:
Degree of a Relationship
Слайд 29
Описание слайда:
Constraints on Binary Realtionships
Слайд 30
Описание слайда:
Cardinality Ratios for
Binary Relationships
Слайд 31
Описание слайда:
Example of 1:1 relationship
Слайд 32
Описание слайда:
Example of M:N relationship
Слайд 33
Описание слайда:
Representation in ER Schema
Слайд 34
Описание слайда:
Participation constraints
Слайд 35
Описание слайда:
Representation in ER Schema
Слайд 36
Описание слайда:
Attributes of Relationships
Слайд 37
Описание слайда:
Weak Entity Types
Слайд 38
Описание слайда:
Скачать презентацию на тему Analysis and Design of Data Systems. Entity Relationship Model. (Lecture 8) можно ниже:
