Database
Models:
The main object
of the database is store the inter related data and maintain the data. The very
basic elementary piece of data is called as ‘data item’. We assume that item
cannot be subdivided into smaller data types and at the same time retain any
meaning to the users of the data. The relationship among the data the database
models are:
1) File
Management System (FMS).
2) Hierarchical
Database System (HDBS).
3) Network
Database System (NDBs).
4) Relational
Database Management System (RDBMS)
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