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Introduction to SQL MCQs

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Practice free Introduction to SQL multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 73 questions — no login required.

Question 37easy

SQL provides the AS keyword, which can be used to assign meaningful column names to the results of queries using the SQL built-in functions.

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Question 38easy

The SELECT command, with its various clauses, allows users to query the data contained in the tables and ask many different questions or ad hoc queries.

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Question 39easy

A SELECT statement within another SELECT statement and enclosed in square brackets ([...]) is called a subquery.

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Question 40easy

The rows of the result relation produced by a SELECT statement can be sorted, but only by one column.

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Question 41easy

There is an equivalent join expression that can be substituted for all subquery expressions.

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Question 42easy

A dynamic view is one whose contents materialize when referenced.