RDBMS Unit 1: Understanding Data in Computing

Data is a collection of distinct small units of information, which can be in the form of text, numbers, media, bytes, etc.

A database management system (DBMS) is system software for creating and managing databases.

The word 'data' is originated from the word 'datum' that means 'single piece of information.'

<p>The purpose of a database management system is to provide the users with the processes of defining, constructing, and manipulating the database for various applications.</p> Signup and view all the answers

<p>A DBMS enables end users to create, protect, read, update, and delete data in a database.</p> Signup and view all the answers

<p>Database systems are designed to manage large bodies of information.</p> Signup and view all the answers

<p>Data redundancy and inconsistency, Difficult in accessing data, Data isolation, Data integrity, Concurrent access is not possible, Security Problems</p> Signup and view all the answers

<p>Data Independence, Efficient Data Access, Data Integrity and security, Data administration, Concurrent access and Crash recovery, Reduced Application Development Time</p> Signup and view all the answers

<p>Banking, Airlines, Universities, Sales, Online retailers, Manufacturing, Human resources</p> Signup and view all the answers

<p>The query processor transforms user queries into a series of low-level instructions. It interprets the online user’s query and converts it into an efficient series of operations in a form capable of being sent to the run time data manager for execution.</p> Signup and view all the answers

<p>The run time database manager is the central software component of the DBMS, which interfaces with user-submitted application programs and queries. It handles database access at run time and converts operations in user’s queries from the user’s logical view to a physical file system.</p> Signup and view all the answers

<p>It interfaces with user-submitted application programs and queries. It handles database access at run time and converts operations in user’s queries from the user’s logical view to a physical file system.</p> Signup and view all the answers

<p>Query processor, Run time database manager</p> Signup and view all the answers

<p>Banking, Universities</p> Signup and view all the answers

<p>To ensure the safety of the information stored, despite system crashes or attempts at unauthorized access</p> Signup and view all the answers

<p>Concepts and techniques for managing data</p> Signup and view all the answers