Which clause is used to assign a temporary alias name to a column or table in an SQL statement for better readability? MCQ with Answer and Explanation
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Question #1
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Information is:
Correct Answer: Option B
Explanation:
Information is data that has been organized and processed to provide context and meaning.
Information is data that has been organized and processed to provide context and meaning.
This question belongs to:
Computer
Database Management System (DBMS)
Question #2
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What is the concept of data independence?
Correct Answer: Option D
Explanation:
Data independence is the capacity to change the database schema at one level without affecting the next higher level, minimizing impact on applications.
Data independence is the capacity to change the database schema at one level without affecting the next higher level, minimizing impact on applications.
This question belongs to:
Computer
Database Management System (DBMS)
Question #3
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The concept that prevents concurrent transactions from interfering with each other and creating data inconsistencies is known as what?
Correct Answer: Option D
Explanation:
Isolation ensures that the execution of concurrent transactions does not interfere with one another, making them appear as if they are executing sequentially.
Isolation ensures that the execution of concurrent transactions does not interfere with one another, making them appear as if they are executing sequentially.
This question belongs to:
Computer
Database Management System (DBMS)
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