Category: RDBMS

Why storage management is important in a database management system

The databases of any organization typically require a large amount of storage space to store their daily operational information. Corporate company‚Äôs database sizes are usually of gigabytes of data or sometimes for largest companies these databases will be of terabytes of data. 1 gigabyte is 1000 megabytes (1 Billion bytes), and 1 terabyte is 1 …

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What is a data model?

The structure of the underlying database is called the data model. This structure consists of a collection of conceptual tools for describing data, data relationships, data semantics, and consistency constraints. The various data models falls into three different groups: object-based logical models, record based logical models, and physical models. Object-based logical models Object based logical …

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