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Library Cache Hit Ratio

select sum(PINS),
sum(PINHITS),
round((sum(PINHITS) / sum(PINS)) * 100,3)
sum(RELOADS),
round((sum(PINS) / (sum(PINS) + sum(RELOADS))) * 100,3)
from sys.v_$librarycache;
 
 
     
 
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