Which of the following is NOT a trigger type supported by Oracle Database?

Introduction / Context:
Triggers in Oracle can fire before or after DML events and, for views, Oracle supports INSTEAD OF triggers. Recognizing valid trigger timing keywords is fundamental for database programming.

Given Data / Assumptions:

• Oracle supports various trigger timings and event scopes.
• Choices include BEFORE, AFTER, INSTEAD OF, and a distractor.

Concept / Approach:
Oracle valid timing keywords are BEFORE and AFTER for tables, and INSTEAD OF for views. There is no DURING timing in Oracle trigger syntax.

Step-by-Step Solution:

Verification / Alternative check:
Oracle SQL Language Reference documents only BEFORE, AFTER, and INSTEAD OF timings for triggers.

Why Other Options Are Wrong:
BEFORE is a standard trigger timing.
AFTER is also standard.
INSTEAD OF is used on views to substitute DML behavior.

Common Pitfalls:
Assuming a natural-language timing like DURING exists; Oracle requires precise keywords.

Final Answer:
DURING