only one entity
USEFULL FOR FYBSC (IT) & TYBSC (CS) STUDENTS
- A database model defines the logical design of data. The model describes the relationships between different parts of the data.
- Basically three models are –
(i) Hierarchical model
(ii) Network model
(iii) Relational model
- Hierarchical model
In his model each entity has only one parent but can have several children. At the top of hierarchy there is only one entity which is called ROOT.
- Network model
In the network model, entities are organized in a graph, in which some entities can be accessed through several paths.
- Relational model
In this model, data is organized in two-dimensional tables called relations. The tables or relation are related to each other.
Posted By-: Vissicomp Technology Pvt. Ltd.
Website -: http://www.vissicomp.com
This entry was posted in DBMS and tagged DATA BASE ARCHITECTURE, Data Base Management System, data is organized, database model, entities can be accessed, Hierarchical model, logical design of data, Network model, only one entity, organized in a graph, Relational model, ROOT, The tables or relation are related to each other, top of hierarchy, two-dimensional tables called relations, USEFULL FOR FYBSC (IT) & TYBSC (CS) STUDENTS.