The data model emphasizes on what data is needed and how it should be organized instead of what operations will be performed on data. Data Model is like an architect's building plan, which helps to build conceptual models and set a relationship between data items.

Data Models – Database Management System

In this “Data Models – Database Management System” you will learn about the following topics:

  1. Introduction to Data Modelling
  2. Data Model
  3. Types of Data Models
  4. Conceptual Data Model
  5. Logical Data Model
  6. Physical Data Model
  7. ER-Diagram
  8. Why Use ER Diagrams?
  9. ER Diagrams Symbols & Notations
  10. Components of ER Diagram
  11. Entity
  12. Entity Set
  13. Difference between Strong Entity Set and Weak Entity Set
  14. Attribute
  15. Relationship
  16. Degree of Relationship/Types of Relationship
  17. Participation Constraints
  18. Mapping Constraints/Cardinality Ratios
  19. Notation Styles That Express Cardinality
  20. Extended ER Features
  21. Generalization
  22. Specialization
  23. Aggregation
  24. Construction of ER-Diagram (Practice)
  25. UML Class Diagram
  26. Benefits of Class Diagram
  27. Essential Elements of A UML Class Diagram
  28. Example of UML Class Diagram
  29. Difference between Entity and Object
  30. Alternate Data Models
  31. Hierarchical Model
  32. Features of a Hierarchical Model
  33. Network Data Model
  34. Features of a Network Data Model
  35. Relational Data Model
  36. Features of Relational Data Model
  37. Object-Oriented Data Model




==== Point to Note ====

This article Data Models – Database Management System is contributed by Rashita Gurung, a student of LA GRANDEE International College.

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BCA 4th Semester DBMS (Database Management System) Notes Pdf:

  1. Unit I: Introduction To Database Management System (DBMS) - Database Management System
  2. Unit III: Relational Model - Database Management System
  3. Unit IV: Relational Database Query Languages - Database Management System
  4. Unit V: Database Constraints and Relational Database Design - Database Management System
  5. Unit VI: Database Security - Database Management System
  6. Unit VII: Query Processing - Database Management System
  7. Unit VIII: File Organization and Indexing - Database Management System
  8. Unit IX: Crash Recovery - Database Management System
  9. Unit X: Transaction Processing and Concurrency Control - Database Management System
  10. Unit XI: Advanced Database Concepts - Database Management System