-> A record based data model is used to specify the overall logical structure of the database.
-> In this model the database consists of a no. Of fixed formats of different types.
-> Each record type defines a fixed no. Of fields having a fixed length.
-> There are 3 principle types of record based data model. They are :
1. Hierarchical data model.
2. Network data model.
3. Relational data model.
-> In this model the database consists of a no. Of fixed formats of different types.
-> Each record type defines a fixed no. Of fields having a fixed length.
-> There are 3 principle types of record based data model. They are :
1. Hierarchical data model.
2. Network data model.
3. Relational data model.
