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University Management System

In: Computers and Technology

Submitted By naughtynicegirl
Words 1292
Pages 6
1). Introduction to Database ……………………………… 5-7
2) Introduction to University management System………………………………………………………. 8-9
• E-R Diagram………………………………………….. 10
3) Relations of university….. …………………………....... 11-14
4) Queries on Relations…………………………………….. 15-18
5) Conclusion ……………………………………………….. 19
6) Bibliography……………………………………………….. 19

A DBMS is a complex set of software programs that controls the organization, storage, management, and retrieval of data in a database. A DBMS includes:
Data models: A modeling language to define the schema of each database hosted in the DBMS, according to the DBMS data model.
 The four most common types of organizations are the hierarchical, network, relational and object models. Inverted lists and other methods are also used. A given database management system may provide one or more of the four models. The optimal structure depends on the natural organization of the application's data, and on the application's requirements (which include transaction rate (speed), reliability, maintainability, scalability, and cost).
 The dominant model in use today is the ad hoc one embedded in SQL, despite the objections of purists who believe this model is a corruption of the relational model, since it violates several of its fundamental principles for the sake of practicality and performance. Many DBMSs also support the Open Database Connectivity API that supports a standard way for programmers to access the DBMS.
Data structures: Data structure(fields, records, files and objects) optimized to deal with very large amounts of data stored on a permanent data storage device (which implies relatively slow access compared to volatile main memory).
A Database Query Language : A database query language and report writer to allow users to interactively interrogate the database, analyze its data and update it according to the...

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