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tiime:2009-11-18
ORACLEµÈ´ýʼþÀàÐÍ¡¾Classes of Wait Events¡¿
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The following list describes each of the wait classes.¡¿
1. ¹ÜÀíÀࣺAdministrative
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commands that cause users to wait (for example, an index rebuild)¡¿
2. Ó¦ÓóÌÐòÀࣺApplication
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lock waits caused by row level locking or explicit lock commands)¡¿
3. Ⱥ¼¯ÀࣺCluster
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resources (for example, global cache resources such as 'gc cr block busy'¡¿
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