A user complains about poor database performance. You want to verify<p>If the user’s session has waited for certain types of I/O activity. Which view</p><p>Displays all waits waited on by a session at least once?</p>

A user complains about poor database performance. You want to verify

If the user’s session has waited for certain types of I/O activity. Which view

Displays all waits waited on by a session at least once?

A user complains about poor database performance. You want to verify

If the user’s session has waited for certain types of I/O activity. Which view

Displays all waits waited on by a session at least once?

V$SESSION_EVENT

V$SESSTAT

V$SESSION_WAIT

V$SESSION_WAIT_CLASS

E.V$SESSION

正确答案A

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