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View of Data in DBMS

By Chaitanya Singh | Filed Under: DBMS

Abstraction is one of the main features of database systems. Hiding irrelevant details from user and providing abstract view of data to users, helps in easy and efficient user-database interaction. In the previous tutorial, we discussed the three level of DBMS architecture, The top level of that architecture is “view level”. The view level provides the “view of data” to the users and hides the irrelevant details such as data relationship, database schema, constraints, security etc from the user.

To fully understand the view of data, you must have a basic knowledge of data abstraction and instance & schema. Refer these two tutorials to learn them in detail.

  1. Data abstraction
  2. Instance and schema
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DBMS Tutorial

Basics

  • DBMS Tutorial
  • DBMS Introduction
  • Database Applications
  • DBMS vs File System
  • DBMS Architecture
  • Three-level DBMS architecture
  • View in DBMS
  • Abstraction
  • Instance & Schema
  • DBMS languages

Data Models

  • Data Models
  • ER Diagram
  • ER Design issues
  • Convert ER to table
  • DBMS Generalization
  • DBMS Specialization
  • DBMS Aggregration
  • Relational Model
  • Hierarchical Model
  • Constraints
  • Cardinality

Relational Database

  • RDBMS concepts
  • Relational Algebra
  • Relational Calculus
  • Keys Index
  • Primary Key
  • Super Key
  • Candidate Key
  • Foreign Key
  • Composite Key
  • Alternate Key

Normalization

  • Normalization
  • Functional dependency

Transaction Management

  • Transaction Management
  • ACID properties
  • Transaction States
  • DBMS Schedules
  • Serializability
  • Conflict Serializability
  • View Serializability
  • Deadlock

Concurrency Control

  • Concurrency Control

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