Soft cover. Condizione: New. Database Management Systems is a core subject which explains how data is managed for applications which are used in our day to day life such as Banking Systems, Railway Reservation Systems etc. The book DATABASE MANAGEMENT SYSTEMS has been written for B.Tech 3rd year students of Dr. A.P.J. Abdul Kalam Technical University. The book has been written according to the syllabus of the subject Database Management Systems and concepts have been explained well through the help of examples and diagrams. The book contains Introduction, Entity-Relationship Model, Relational Algebra, SQL, Functional Dependencies and Normalization, Distributed Databases, Transaction Processing and Concurrency Control. ABOUT THE AUTHOR:- Archana Verma is an Associate Professor in the Department of CSE / IT / MCA in IEC Group of Institutions, Greater Noida, affiliated to Dr. A.P.J. Abdul Kalam Technical University, Lucknow. She has taught B.Tech, M.Tech and MCA students for last 16 years. She worked with TCS for 6 years prior to that. She obtained Master of Information Science Degree in June 1995 from University of New South Wales, Canberra, Australia. MCA from Maharishi Dayanand University, Rohtak in June 2004 and M.Tech ( Computer Science Engineering) from Amity University, Noida in June 2013. She has written two books, "Unix and Shell Programming" and "Bioinformatics". She is a dedicated teacher and loves her profession. She likes to share her knowledge with students through writing books. CONTENTS:- Acknowledgement . 9 Synopsis . 11 1. Introduction . 13 An Overview of Database Management System Users in a Database System Database Systems vs File systems Categories of Data Models The 3 Schema Architecture Data Independence Data Base Languages and Interfaces DataBase Structure. 2. Entity Relationship Model . 29 Definitions Entity Types, Entity Sets and Value Sets Keys Relationships, Relationship Types, Relationship Instance, Relationship Sets, Relationshi. Codice articolo 135617

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Database Management System

Archana Verma

Editore: GenNext Publication, 2020

ISBN 10: 9353242339 ISBN 13: 9789353242336

Nuovo Paperback

Da: Gyan Books Pvt. Ltd., Delhi, India

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Paperback. Condizione: New. Language: English. ABOUT THE BOOK:- Database Management Systems is a core subject which explains how data is managed for applications which are used in our day to day life such as Banking Systems, Railway Reservation Systems etc. The book DATABASE MANAGEMENT SYSTEMS has been written for B.Tech 3rd year students of Dr. A.P.J. Abdul Kalam Technical University. The book has been written according to the syllabus of the subject Database Management Systems and concepts have been explained well through the help of examples and diagrams. The book contains Introduction, Entity-Relationship Model, Relational Algebra, SQL, Functional Dependencies and Normalization, Distributed Databases, Transaction Processing and Concurrency Control. ABOUT THE AUTHOR:- Archana Verma is an Associate Professor in the Department of CSE / IT / MCA in IEC Group of Institutions, Greater Noida, affiliated to Dr. A.P.J. Abdul Kalam Technical University, Lucknow. She has taught B.Tech, M.Tech and MCA students for last 16 years. She worked with TCS for 6 years prior to that. She obtained Master of Information Science Degree in June 1995 from University of New South Wales, Canberra, Australia. MCA from Maharishi Dayanand University, Rohtak in June 2004 and M.Tech (Computer Science Engineering) from Amity University, Noida in June 2013. She has written two books, "Unix and Shell Programming" and "Bioinformatics". She is a dedicated teacher and loves her profession. She likes to share her knowledge with students through writing books. CONTENTS:- Acknowledgement . 9 Synopsis . 11 1. Introduction . 13 An Overview of Database Management System Users in a Database System Database Systems vs File systems Categories of Data Models The 3 Schema Architecture Data Independence Data Base Languages and Interfaces DataBase Structure. 2. Entity Relationship Model . 29 Definitions Entity Types, Entity Sets and Value Sets Keys Relationships, Relationship Types, Relationship Instance, Relationship Sets, Relationship Degree Constraints on Relationship Types The ER Diagram Reducing the ER Diagram into Tables Weak Entity Type Ternary Relationships Subclasses and Superclasses Aggregation. 3. Relational Model and Relational Algebra . 63 Introduction Domains, Attributes, Tuples and Relations Relational Constraints and Relational database Schemas Relational Algebra Operations Operations Particularly Designed for the Relational Database The Division Operation Aggregate Functions The Tuple Relational Calculus The Domain Relational Calculus. 4. Structured Query Language (SQL) . 91 Structured Query Language Definition Basic Structure of SQL Queries Complex and Nested Queries Set Operations Aggregate Functions NULL Values Modification of the Database Join Expressions Views Accessing SQL from a Programming Language Functions and Procedures. 5. Functional Dependencies and Normalization . 123 Introduction Updation Anomalies Functional Dependencies NORMAL FORMS Multivalued Dependencies and Fourth Normal Form Join Dependency and Fifth Normal Form Lossless Join Decomposition Dependency Preservation Property of a Decomposition Inclusion Dependencies. 6. Transaction Processing . 165 Introduction Transaction Concept Transaction States Problems that Occur during Concurrency Schedules and Recoverability Schedules and Serializability Conflict Serializability Testing for Conflict Serializability View Serializability Transaction Support in SQL Recovery Techniques Caching Database Backup. 7. Distributed Databases . 197 Distributed Data Storage Concurrency Control Directory System. 8. Concurrency Control . 205 Concurrency Control Guaranteeing Serializability with the help of Locks The Two-Phase Locking Protocol Strict Two-Phase Locking Protocol Rigorous Two-Phase Locking Protocol Deadlock Free Protocols Graph Based Protocol Timestamp Based Protocol Validation Based Pro. Codice articolo PB1111015809930

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