What is the ordered hint in Oracle?

Can you please clarify what you mean by "ordered hint in Oracle"? Are you referring to a specific SQL hint that Oracle database provides to optimize query performance, perhaps related to the order in which operations are executed? If so, there are various hints available in Oracle that can be used to influence the optimizer's choices, but none that are specifically named as "ordered hint." Instead, hints like "/*+ LEADING */" can be used to suggest a specific join order to the optimizer. Is this what you were referring to, or were you asking about something else entirely?