Which SQL command is used to permanently remove an entire table structure along with all its data from the database? MCQ with Answer and Explanation
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Question #1
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Which clause is used to assign a temporary alias name to a column or table in an SQL statement for better readability?
Correct Answer: Option C
Explanation:
The AS keyword is used to assign a temporary alias name to an expression, column, or table within an SQL statement query execution context.
The AS keyword is used to assign a temporary alias name to an expression, column, or table within an SQL statement query execution context.
This question belongs to:
Computer
Database Management System (DBMS)
Question #2
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In SQL, what does the wildcard '%' match when used with LIKE?
Correct Answer: Option C
Explanation:
'%' matches any sequence of zero or more characters, while '_' matches a single character.
'%' matches any sequence of zero or more characters, while '_' matches a single character.
This question belongs to:
Computer
Database Management System (DBMS)
Question #3
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Which of the following is a valid SQL statement to create a view?
Correct Answer: Option C
Explanation:
Both syntaxes are valid: CREATE VIEW view_name AS SELECT ... and with column aliases.
Both syntaxes are valid: CREATE VIEW view_name AS SELECT ... and with column aliases.
This question belongs to:
Computer
Database Management System (DBMS)
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