DATABASE FUNDAMENTALS
WHAT IS DATABASE MANAGEMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Unique and distinct object used to collect and store data
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Data
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Entity
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Relationship
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Contraint
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Explanation:
Detailed explanation-1: -10) What is a collection of data items that have something in common with the entity? a record. 11) What is defined as any data item in a record that is used to identify the record? a key.
Detailed explanation-2: -An entity is anything (a person, a place, a thing, or an event) about which data are to be collected and stored. An entity represents a particular type of object in the real world.
Detailed explanation-3: -Each table in a database represents two or more entities. The relationship between different entities (in different tables) is handled by their common columns.
Detailed explanation-4: -The primary key is the minimal set of attributes which uniquely identifies any row of a table.
There is 1 question to complete.