Oracle并行服务器（OPS）的12个经典问答

select count(*) "Number of hashed PCM locks"
from v$lock_element where bitand(flags, 4) != 0
/
select count(*) "Number of fine grain PCM locks"
from v$lock_element where bitand(flags, 4) = 0
/

col file_name format a29
col tablespace format a12
col blocking format 9999999
col nlocks format 99999
col start_lk format 9999999
select l.file_id || ' ' || l.file_name file_name,
l.ts_name "TABLESPACE",
start_lk, nlocks, blocking, frequency "PING COUNT"
from sys.file_ping p, sys.file_lock l
where l.file_id = p.file_id
order by l.file_id
/

col table format a40
select file#, kind||' '||username||'.'||name "TABLE", sum(xnc) pings
from sys.v$false_ping p, sys.dba_users u
where u.user_id = p.owner#
group by file#, kind||' '||username||'.'||name, xnc
order by xnc desc
/

PHOENIX =
(DEscriptION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 10.1.1.50)(PORT = 1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = 10.1.1.51)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = ora8)
)
)