V$:Dynamic Performance View,又稱為動態視圖,它是儲存在SGA之中。可以透過SELECT * FROM dba_objects WHERE object_name like 'V_$%'來查詢。 根據Oracle Documentation的說明: V$sysstat displays system statistics. To find the name of the statistic associated with each statistic number (STATISTIC#), query the V$STATNAME view.