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Home Database Introduction to SQL Comments

  • Question
  • ORDER BY can be combined with the SELECT statements.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • True 


  • Introduction to SQL problems


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    • 1. The SQL keyword GROUP BY instructs the DBMS to group together those rows that have the same value in a column.

    • Options
    • A. True
    • B. False
    • Discuss
    • 2. The rows of the result relation produced by a SELECT statement can be sorted, but only by one column.

    • Options
    • A. True
    • B. False
    • Discuss
    • 3. The result of every SQL query is a table.

    • Options
    • A. True
    • B. False
    • Discuss
    • 4. The ADD command is used to enter one row of data or to add multiple rows as a result of a query.

    • Options
    • A. True
    • B. False
    • Discuss
    • 5. There is an equivalent join expression that can be substituted for all subquery expressions.

    • Options
    • A. True
    • B. False
    • Discuss
    • 6. Each index consumes extra storage space and also requires overhead maintenance time whenever indexed data change value.

    • Options
    • A. True
    • B. False
    • Discuss
    • 7. To establish a range of values, < and > can be used.

    • Options
    • A. True
    • B. False
    • Discuss
    • 8. 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.

    • Options
    • A. True
    • B. False
    • Discuss
    • 9. The condition in a WHERE clause can refer to only one value.

    • Options
    • A. True
    • B. False
    • Discuss
    • 10. If you are going to use a combination of three or more AND and OR conditions, it is often easier to use the NOT and NOT IN operators.

    • Options
    • A. True
    • B. False
    • Discuss


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