MySQL 8.0 OCP認證考試原題題庫整理(CUUG內部資料)-第24題
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本套題庫是MySQL 8.0 OCP考試試題,由CUUG整理,如有報考OCP認證意向,可以聯系cuug咨詢老師。
24、
Choose the best answer.
Examine this partial report:
mysql> SHOW FULL PROCESSLIST;
Examine this query:
SELECT SUM (m.CURRENT_NUMBER_OF_BYTES_USED) AS TOTAL
FROM performance_schema.memory_summary_by_thread by_event_name m
INNER JOIN performance_schema.threads t
ON m.THREAD_ID = t.THREAD_ID
WHERE t.PROCESSLIST_ID = 10;
What information does this query provide?
A) total memory used by connection number 10
B) total memory used across all connections associated with the user on connection number 10
C) total memory used by the first 10 threads
D) total memory used by thread number 10
E) total memory used across all connections associated with the user on thread number 10
F) total memory used by the first 10 connections