ER Diagram | DBMS-Entity Relationship Diagram
ER diagram is a overall logical structure of database. It is very important for creating and improving the database.
This lecture explains all concept related to E-R diagram like
what and why E-R diagram
components of E-R diagram
definition of entity, attributes, relationship, cardinality
types of attributes and cardinality
symbols used in E-R diagram
difference between strong entity and weak entity
difference between total participation and partial participation
simple example of E-R diagram
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