select avg(v.value) shared_pool_size,greatest(avg(s.ksmsslen) - sum(p.ksmchsiz), 0) spare_free,
to_char(100 * greatest(avg(s.ksmsslen) - sum(p.ksmchsiz), 0) / avg(v.value),'99999') || '%' wastage
from sys.x$ksmss s, sys.x$ksmsp p,sys.v$parameter v
where s.inst_id = userenv('Instance') and
p.inst_id = userenv('Instance') and
p.ksmchcom = 'free memory' and
s.ksmssnam = 'free memory' and
v.name = 'shared_pool_size';[@more@]
to_char(100 * greatest(avg(s.ksmsslen) - sum(p.ksmchsiz), 0) / avg(v.value),'99999') || '%' wastage
from sys.x$ksmss s, sys.x$ksmsp p,sys.v$parameter v
where s.inst_id = userenv('Instance') and
p.inst_id = userenv('Instance') and
p.ksmchcom = 'free memory' and
s.ksmssnam = 'free memory' and
v.name = 'shared_pool_size';[@more@]
来自 “ ITPUB博客 ” ，链接：https://blog.itpub.net/18921899/viewspace-1017393/ ，如需转载，请注明出处，否则将追究法律责任。
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