37+ entity relationship model in dbms ppt
Get ideas for your own. In the above example Entities Employee.
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Silberschatz Korth and Sudarshan 722 Database System Concepts Weak Entity Sets Cont Weak Entity Sets Cont Every weak entity must be associated with an identifying entity.
. The relationships among entities define the logical association between entities. To illustrate how relationships between entities are defined and refined. View Entity Relationship Data Model Components In Dbms PPTs online safely and virus-free.
Entity-Relationship E-R Model Agenda Characteristics of E-R Model Components of E-R Model Example of E-R Model Enhanced E-R Model Characteristics of E-R Model Semantic data model. Primary key-Primary is basically the key that create relational database where each and every record contain the unique valuesIt is. Given below is another example of ER.
Learn new and interesting things. Entity relationship Diagram can be included all the criteria. 39 Views Download Presentation.
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