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Home ‣ Database ‣ Introduction to SQL Comments
  • Question

  • The SQL statement: SELECT Number1 + Number 2 AS Total FROM NUMBER_TABLE; adds two numbers from each row together and lists the results in a column named Total.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • True 

    • Introduction to SQL problems

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    • 1. Most companies keep at least two versions of any database they are using.

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    • A. True
    • B. False
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    • 2. You may specify an object identifier with only one unique tag name.

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    • A. True
    • B. False
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    • 3. Specifying a key ensures that no two objects belonging to a class have the same value for the key attribute(s).

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    • A. True
    • B. False
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    • 4. An ordered collection of elements of the same type are called sets.

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    • A. True
    • B. False
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    • 5. The ODMG Object Model requires that a relationship be specified in both directions.

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    • A. True
    • B. False
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    • 6. Microsoft Access has become ubiquitous, and being able to program in Access is a critical skill.

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    • A. True
    • B. False
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    • 7. SQL is a data sublanguage.

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    • A. True
    • B. False
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    • 8. SUM, AVG, MIN, and MAX can only be used with numeric columns.

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    • A. True
    • B. False
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    • 9. The HAVING clause acts like a WHERE clause, but it identifies groups that meet a criterion, rather than rows.

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    • A. True
    • B. False
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    • 10. The wildcard asterisk (*) is the SQL-92 standard for indicating "any sequence of characters."

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    • A. True
    • B. False
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