DATABASE
Presentation
•
Computers
•
7th Grade
•
Practice Problem
•
Hard
Samriddhi Srivastava
Used 58+ times
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10 Slides • 0 Questions
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DATABASE
BY-SAMRIDDHI
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WHAT IS A DATABASE?
DATABASE IS A WAY OF STORING AND ORGANISING DATA IN TABLES SO THAT THE DESIRED INFORMATION CAN BE EASILY ACCESSED OR EDITED
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DATABASE IS USED IN
RAILWAYS--FOR RESERVATION OR FOR SCHEDULING
SOCIAL NETWORKING SITES-FOR STORING INFORMATION ON PROFILE OR MESSAGES
SCHOOLS-FOR STORING INFORMATION RELATED TO SCHOOL
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TYPES OF DATABASE
FLAT DATABASE-INFORMATION STORED IN A SINGLE TABLE
RELATIONAL DATABASE-INFORMATION STORED IN A MULTIPLE TABLE
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MAIN COMPONENTS OF A DATABASE
RECORDS OR ROW
FIELDS OR COLUMNS
QUERY
REPORTS
DATA
FORMS
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WHAT IS A PRIMARY KEY?
A PRIMARY KEY OF A TABLE IS A FIELD OR COMBINATION OF FIELDS WHOSE VALUE IS UNIQUE OR EACH RECORD
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WHAT IS A QUERY?
A REQUEST TO THE DATABASE TO EXTRACT DATA ASKED BY THE USER
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WHAT IS DATABASE MANAGEMENT SYSTEM?
IT IS A SOFTWARE PACKAGE THAT FACILITATES TO CREATE,EDIT,FORMAT,RETRIEVE DATA AS PER THE REQUIREMENT
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ADVANTAGES OF A DBMS
DATA SHARING
DATA SECURITY
DATA CONSISTENCY
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DATABASE
BY-SAMRIDDHI
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