Dbms Networks
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The document discusses different database models including flat file, hierarchical, network, relational, and object oriented models. A database model is the theoretical foundation that determines how data can be stored, organized, and modified in a database system. The document provides a brief overview of each model and is presented by Sagar Morakhia from CEPT University in Ahmedabad, India.
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This document provides an overview of key concepts in database management systems including:
1. It discusses different data models including relational, entity-relationship, and object-oriented models.
2. It describes database system components like data definition language, data manipulation language, and transaction management.
3. It outlines different types of users that interact with database systems and roles like database administrators.
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Object Oriented Database Management System
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2. Clustering indexes order records in a data file based on a non-key field to improve performance of range queries on that field.
3. Secondary indexes provide an alternative means of accessing records in a data file through a secondary field, and include the field value and a pointer to the record.
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Introduction to Database Management System
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Unit01 dbms
The document provides an overview of database management systems (DBMS). It discusses DBMS applications, why DBMS are used, different users of databases, data models and languages like SQL. It also summarizes key components of a DBMS including data storage, query processing, transaction management and database architecture.
Chapter 2 database environment
The document discusses key concepts from Chapter 2 on database environments, including:
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2) It explains the roles of various users in a database environment like data administrators, database administrators, and end users.
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CLASSIFICATION ACCORDING TO DATA MODELS
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Introduction
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This document provides an overview of key concepts in database management systems including:
1. It discusses different data models including relational, entity-relationship, and object-oriented models.
2. It describes database system components like data definition language, data manipulation language, and transaction management.
3. It outlines different types of users that interact with database systems and roles like database administrators.
Introduction To Database Management System
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• Collection of interrelated data • Set of programs to access the data • DMBS contains information about a particular enterprise • DBMS provides an environment that it both convenient and efficient to use
Object Oriented Database Management System
An Introduction to Architecture of Object Oriented Database Management System and how it differs from RDBMS means Relational Database Management System
Advanced Database Lecture Notes
The document discusses various topics related to physical database design including:
1. Primary indexes provide direct access to records in a data file based on the primary key.
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3. Secondary indexes provide an alternative means of accessing records in a data file through a secondary field, and include the field value and a pointer to the record.
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A database management system (DBMS) consists of an interrelated set of data and programs to access that data. The DBMS provides several levels of abstraction to simplify interaction between users and the stored data. It defines data structures to store information and mechanisms to manipulate the data while ensuring data safety, integrity, and security. The DBMS is controlled by a database administrator and provides advantages like reduced data redundancy, data sharing, and integrity. It uses data models and definition/manipulation languages to define, retrieve, modify, and maintain the stored data.
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Dbms Networks
- 1. DBMS Networks -Sagar Morakhia(AM 0912)
- 2. DBMS Models A database model is the theoretical foundation of a database and fundamentally determines in which manner data can be stored, organized, and modified in a database system Types: Flat File Database Model Hierarchical Model Network Model Relational Model Object oriented model
- 8. Thank You Sagar Morakhia MBA inTechnology Management CEPT University,Ahmedabad Gujarat, India