DBMS_INTRO - DATABASE MANGEMENT SYSTEMS B.E V SEM A SEC...

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B.E. IV Sem – Database Management Systems DATABASE MANGEMENT SYSTEMS B.E V SEM ‘A’ SEC P.Mirunalini AP ,CSE SSNCE
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B.E. IV Sem – Database Management Systems c An Introduction c What is DBMS? c Purpose of Database System c View of Data c Data Models c Database Languages Overview
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B.E. IV Sem – Database Management Systems An Introduction s Data : Known facts that can be recorded and have an implicit meaning s Database A very large, integrated collection of interrelated data with an implicit meaning . s Characteristics of database: b A database represents some aspects of the real world. b A database is a logically coherent collection of data with some inherent meaning. b A database is designed, built, and populated with data for a specific purpose. b It has an intended group of users and some preconceived applications in which users are interested.
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B.E. IV Sem – Database Management Systems Database
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B.E. IV Sem – Database Management Systems What is DBMS? s Data base systems b is a collection of programs that enables users to create and maintain the database. b A general-purpose software system that facilitates the processes of defining, constructing, and manipulating databases for various applications.
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B.E. IV Sem – Database Management Systems What is DBMS? (Cont.) c Defining a database – Involves specifying the data types, structures and constraints for the data to be stored in the database. c Constructing a database – Process of storing the data itself on storage medium that is controlled by DBMS. c Manipulating a database – Includes functions such as querying the DB for retrieval, updating the database to reflect changes in the miniworld and generating the reports, etc.,
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B.E. IV Sem – Database Management Systems Database Applications c c Universities: Student information, course registration & grades c Banking: All business transactions such as customer information,account,loans and banking transactions c Sales: Customers, products, purchase information c Manufacturing: Production, inventory, orders, supply chain c Human resources: Employee records, salaries, tax deductions and generation of paychecks c Finance: Holdings, sales and purchase of stocks and bonds, enable automated on-line trading.
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DBMS_INTRO - DATABASE MANGEMENT SYSTEMS B.E V SEM A SEC...

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