Database management systems cs403 power point slides lecture 01
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This document provides an overview of the first lecture in a database management systems course. It introduces databases and their advantages over prior file processing systems. It defines what a database is, including that it is a shared collection of logically related data used by an organization. It also notes that in file processing systems, data is duplicated across different application files, which can lead to inconsistencies, whereas databases allow for data sharing and independence while maintaining better data integrity. The lecture aims to provide an introduction to basic database concepts and design stages.
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Tags: Information Security, ISO/IEC 27001, ISO/IEC 42001, Artificial Intelligence, GDPR
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Database management systems cs403 power point slides lecture 01
- 4. Course Objectives Introduction to Very basics Guides through Different design stages Familiarize with a tool Emphasis on Design stages of Databases
- 6. Lecture Overview • Database Definition • Comparison with the prior Data Processing approach • Pros & Cons of Databases
- 8. Database Def-1 A database is a shared collection of logically related data that is stored to meet the requirements of different users of an organization
- 9. A database is a self-describing collection of integrated records Database Def-2
- 10. A database models a particular real world system in the computer in the form of data Database Def-3
- 11. The concept of a shared organizational database Accounting Accounts Payable Accounts Receivable Management ControlPlanning Manufacturing ProductionScheduling Marketing Product Development Sales Corporate Database
- 12. A bit of History • Computer initially used for computational/ engineering purposes • Commercial applications introduced File Processing System
- 13. File Processing System A collection of programs that perform services for the end-users such as production of reports
- 14. File Processing Systems Program and Data Interdependence Registration Applications Registration Data Files Registration Examination Applications Examination Data Files Examination Library Applications Library Data Files Library
- 15. Fine Books Issued Father Name Name Reg_Number Library Grade Semester Class Address Name Reg_Number Examination Class Address Phone Father Name Name Reg_Number Registration File Processing Systems Duplication of Data Vulnerable to Inconsistency
- 16. Advantages of Database ApproachAdvantages of Database Approach RegistrationExamination Library Applications Library Examination Applications Registration Applications Database Management System University Students Database - Data Sharing - Data Independence - Controlled Redundancy - Better Data Integrity First Lecture Ends