Multiple choice technology databases

Following datatype cannot be used twice in a table.

  1. NCHAR

  2. LONG

  3. INTEGER

  4. TIMESTAMP

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

Oracle databases only allow one LONG column per table due to legacy design restrictions. This is a well-known Oracle limitation - other listed types (NCHAR, INTEGER, TIMESTAMP) can be used multiple times without restriction.