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Views of Data

September 17, 2016
Published By : Pratik Kataria
Categorised in: Database Management System

A major purpose of DBMS is to provide users with an abstract view of the data. There are 3 levels of abstraction.

1. Physical Level: Describes how the data are actually stored (complex low-level data structures in detail)
   e.g. customer, account, employee record
2. Logical View: Describes what data are stored in database and relationships.
   e.g. data type of data
3. View Level: Describes only part of entire database.
   e.g. application programs to display data

Pratik Kataria

Pratik Kataria is currently learning Springboot and Hibernate.
Technologies known and worked on: C/C++, Java, Python, JavaScript, HTML, CSS, WordPress, Angular, Ionic, MongoDB, SQL and Android.
Softwares known and worked on: Adobe Photoshop, Adobe Illustrator and Adobe After Effects.

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