Multiple choice technology

Unique numbers can be assigned to columns in a database using

  1. Clusters

  2. Synonym

  3. Views

  4. Sequences

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

Sequences are database objects specifically designed to generate unique sequential numbers, often used for auto-incrementing primary keys. Clusters are for physical storage organization, synonyms are alternative names for objects, and views are virtual tables - none generate unique numbers.