Question: APA format Min 500 words
1. What does v$sysstat do?
2. Explain the importance of the results for performance testing done by a DBA using the commands:
• SQL> select name,value from v$sysstat where name like 'physical%';
• SQL> select name,value from v$sysstat where name like '%cache%';
3. What does the automatic database diagnostic monitor (ADDM) show?