Multiple choice technology databases

Which of the following is not a subtype of NUMBER data type.

  1. NATURAL

  2. NATURALN

  3. POSITIVE

  4. SIGNTYPE

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

In PL/SQL, NATURAL, POSITIVE, and SIGNTYPE are predefined subtypes of the NUMBER (or BINARY_INTEGER) data type. NATURALN is not a valid predefined PL/SQL subtype.