COMPUTER SCIENCE AND ENGINEERING
DATA STRUCTURES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Data
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Data Item
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Group Items
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Elementary Items
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Detailed explanation-1: -Elementary Items − Data items that cannot be divided are called as Elementary Items. Attribute and Entity − An entity is that which contains certain attributes or properties, which may be assigned values.
Detailed explanation-2: -Elementary items-Data items that cannot be split are referred to be Elementary Items.
Detailed explanation-3: -An elementary data item is a complete item that cannot be broken into separate parts.
Detailed explanation-4: -Elementary Items-Data items that cannot be divided into sub-items are called ‘Elementary Items’. E.g. the roll number of a student is an elementary item because it cannot be divided further into sub-items. Other examples are: Marks, Age etc.
Detailed explanation-5: -A data item that does not have subordinate data items is called an elementary item . A data item that is composed of one or more subordinate data items is called a group item . A record can be either an elementary item or a group item.