Oracle Database 12c: Installation and Administration — Question 111

A senior DBA asked you to execute the following command to improve performance:
SQL> ALTER TABLE subscribe log STORAGE (BUFFER_POOL recycle);
You checked the data in the SUBSCRIBE_LOG table and found that it is a large table containing one million rows.
What could be a reason for this recommendation?

Answer options

• A. The keep pool is not configured.
• B. Automatic Workarea Management is not configured.
• C. Automatic Shared Memory Management is not enabled.
• D. The data blocks in the SUBSCRIBE_LOG table are rarely accessed.
• E. All the queries on the SUBSCRIBE_LOG table are rewritten to a materialized view.

Correct answer: D

Explanation

The correct answer is D because if the data blocks in the SUBSCRIBE_LOG table are rarely accessed, moving them to the recycle buffer pool can enhance performance by optimizing resource usage. Options A, B, and C discuss configuration settings unrelated to the specific issue of data access frequency, while option E is not relevant since materialized views are not mentioned in the context of the current table's access patterns.