- Published on
Database Design Fundamentals For Software Engineers | Characteristics of the Database Approach
- Authors
- Name
- Milad E. Fahmy
- @miladezzat12
4 - Characteristics of the Database Approach
| Index | Content |
|---|---|
| 1 | Introduction & File-based system |
| 2 | What is Database? |
| 3 | Database Management System (DBMS) |
| 4 | Characteristics of the Database Approach |
| 5 | Benefits of the Database Approach |
What are Characteristics of the Database Approach?
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Self-describing nature of a database system A database system is self-describing because it not only contains the database itself, but also the meta-data, which defines and describes the data and relationships between tables in the database. This information is stored in a catalog by the DBMS software.
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Insulation between program and data In the database approach, the data structure is stored in the system catalog and not in the programs. Therefore, one change is all that is needed to change the structure of a file. This insulation between the programs and data is also called program-data independence.
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Support for multiple views of data A database supports multiple views of data. A view is a subset of the database, which is defined and dedicated for particular users of the system. Multiple users in the system might have different views of the system
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Sharing data and multiuser system Current database systems are designed for multiple users. That is, they allow many users to access the same database at the same time. This access is achieved through features called concurrency control strategies .