However, this kind of relationship was added later as an enhanced extension to the classical ER model. These are very common relationships found in real entities. It is a diagrammatic technique for displaying the Sub Class and Super Class Specialization and Generalization Union or Category Aggregation etc. To reduce this complexity of modeling we have to make improvements or enhancements to the existing ER model to make it able to handle the complex application in a better way.Įnhanced entity-relationship diagrams are advanced database diagrams very similar to regular ER diagrams which represent requirements and complexities of complex databases. Today the complexity of the data is increasing so it becomes more and more difficult to use the traditional ER model for database modeling.
Graph Based Concurrency Control Protocol in DBMS.
Two Phase Locking (2-PL) Concurrency Control Protocol | Set 3.Categories of Two Phase Locking (Strict, Rigorous & Conservative).Lock Based Concurrency Control Protocol in DBMS.Condition of schedules to View-equivalent.Precedence Graph For Testing Conflict Serializability in DBMS.Types of Schedules based Recoverability in DBMS.ISRO CS Syllabus for Scientist/Engineer Exam.ISRO CS Original Papers and Official Keys.
GATE CS Original Papers and Official Keys.
0 kommentar(er)
