Option 1

Immediately inform my manager about the accidental deletion, explain the situation honestly, and ask for their guidance on the best course of action.

Option 2

Attempt to covertly perform a risky, unapproved recovery operation on the database myself, hoping to restore the data before my manager discovers the issue.

Option 3

Delay telling my manager, hoping to find a quick, unassisted solution or for the issue to somehow resolve itself before the deadline hits.