COMPUTER APPLICATIONS
DATABASE MANAGEMENT SYSTEMS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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To store archived data
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To store and organise data
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To analyse data
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None of the above
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Detailed explanation-1: -Databases are used for storing, maintaining and accessing any sort of data. They collect information on people, places or things. That information is gathered in one place so that it can be observed and analyzed. Databases can be thought of as an organized collection of information.
Detailed explanation-2: -Data are organized in database tables. A database table consists of rows and columns. In database terminology, each row is called a record, object or entity. Each column is called a field or attribute.
Detailed explanation-3: -Data files are organized so as to facilitate access to records and to ensure their efficient storage. A tradeoff between these two requirements generally exists: if rapid access is required, more storage is required to make it possible. Access to a record for reading it is the essential operation on data.