What is /*+ in Oracle?
Can you please clarify what the /*+ */ syntax represents in the context of Oracle database management systems? Is it a specific command, a hint for the optimizer, or perhaps something else entirely? I'm particularly interested in understanding its purpose, how it's used, and any potential implications for query performance or overall database health. Thank you for your time and expertise in addressing this query.
What is the All_rows hint?
Could you please elaborate on what exactly the 'All_rows' hint represents in the context of database queries? I'm curious to understand its purpose, when it's typically used, and how it might affect query performance. Additionally, are there any scenarios where it's advisable to avoid using the 'All_rows' hint, and if so, why?