Multiple choice

A sequence is

  1. Operations meant to encapsulate a task and must maintain ACID properties

  2. Used to track sequence values

  3. A column data type used to represent arrays

  4. The set of valid values in a BETWEEN clause

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

A sequence is a user-defined schema-bound object that generates a sequence of numeric values according to the specification with which the sequence was created. It is commonly used to automatically generate unique primary key values.

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