Multiple choice

Which of the following can be a valid column name?

  1. Column

  2. 1966_Invoices

  3. Catch_#22

  4. #Invoices

  5. None of the above

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Oracle column names must start with a letter, can contain letters, digits, underscore (), dollar sign ($), and pound sign (#). Option C (Catch#22) is valid because it starts with a letter and only contains allowed characters. Option A has a trailing space, Option B starts with a digit, and Option D starts with # instead of a letter.

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