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 NAMESPACE 
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 VARCHAR2(15) 
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 The library cache namespace 
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|  
 GETS 
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 NUMBER 
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 The number of times a lock was requested for objects of this namespace 
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|  
 GETHITS 
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 NUMBER 
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 The number of times an object's handle was found in memory 
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|  
 GETHITRATIO 
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 NUMBER 
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 The ratio of GETHITS to GETS 
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|  
 PINS 
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 NUMBER 
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 The number of times a PIN was requested for objects of this namespace 
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|  
 PINHITS 
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 NUMBER 
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 The number of times all of the metadata pieces of the library object were found in memory 
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|  
 PINHITRATIO 
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 NUMBER 
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 The ratio of PINHITS to PINS 
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|  
 RELOADS 
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 NUMBER 
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 Any PIN of an object that is not the first PIN performed since the object handle was created, and which requires loading the object from disk 
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|  
 INVALIDATIONS 
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 NUMBER 
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 The total number of times objects in this namespace were marked invalid because a dependent object was modified 
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|  
 DLM_LOCK_REQUESTS 
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 NUMBER 
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 The number of GET requests lock instance locks 
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|  
 DLM_PIN_REQUESTS 
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 NUMBER 
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 The number of PIN requests lock instance locks 
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|  
 DLM_PIN_RELEASES 
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 NUMBER 
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 The number of release requests PIN instance locks 
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|  
 DLM_INVALIDATION_REQUESTS 
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 NUMBER 
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 The number of GET requests for invalidation instance locks 
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|  
 DLM_INVALIDATIONS 
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 NUMBER 
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 The number of invalidation pings received from other instances 
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