SCRIPT
Script:select
'session_cached_cursors'parameter,
lpad(value, 5)value,
decode(value, 0, 'n/a', to_char(100 * used / value, '990') || '%')usage
from
( select
max(s.value)used
from
v$statnamen,
v$sesstats
where
n.name = 'session cursor cache count' and
s.statistic# = n.statistic#
),
( select
value
from
v$parameter
where
name = 'session_cached_cursors'
)
union all
select
'open_cursors',
lpad(value, 5),
to_char(100 * used / value,'990') || '%'
from
( select
max(sum(s.value))used
from
v$statnamen,
v$sesstats
where
n.name in ('opened cursors current', 'session cursor cache count') and
s.statistic# = n.statistic#
group by
s.sid
),
( select
value
from
v$parameter
where
name = 'open_cursors'
)
/
Sample Output:
PARAMETER VALUE USAGE
---------------------- ---------- -----
session_cached_cursors 20 100%
open_cursors 300 16%
select
to_char(100 * sess / calls, '999999999990.00')||'%' cursor_cache_hits,
to_char(100 * (calls - sess - hard) / calls, '999990.00')||'%' soft_parses,
to_char(100 * hard / calls, '999990.00')||'%' hard_parses
from
( select sum(value) calls from v$sysstat
where name in ('parse count (total)', 'parse count (failures)') ),
( select value hard from v$sysstat where name = 'parse count (hard)' ),
( select value sess from v$sysstat where name = 'session cursor cache hits' )
/
select
to_char(100 * sess / calls, '999999999990.00')||'%' cursor_cache_hits,
to_char(100 * (calls - sess - hard) / calls, '999990.00')||'%' soft_parses,
to_char(100 * hard / calls, '999990.00')||'%' hard_parses
from
( select sum(value) calls from v$mystat m, v$statname s
where m.statistic# = s.statistic# and
name in ('parse count (total)', 'parse count (failures)') ),
( select value hard from v$mystat m, v$statname s
where m.statistic# = s.statistic# and name = 'parse count (hard)' ),
( select value sess from v$mystat m, v$statname s
where m.statistic# = s.statistic# and name = 'session cursor cache hits' )
/
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