查看 Oracle 數據庫鎖和解鎖的方法

-- 查看數據庫鎖明細  
select a.sid, b.serial#, b.username, b.osuser, b.machine, b.program, c.object_name,d.spid,  
       decode(a.type,  
              'mr', 'media recovery',  
              'rt','redo thread',  
              'un','user name',  
              'tx', 'transaction',  
              'tm', 'dml',  
              'ul', 'pl/sql user lock',  
              'dx', 'distributed xaction',  
              'cf', 'control file',  
              'is', 'instance state',  
              'fs', 'file set',  
              'ir', 'instance recovery',  
              'st', 'disk space transaction',  
              'ts', 'temp segment',  
              'iv', 'library cache invalida-tion',  
              'ls', 'log start or switch',  
              'rw', 'row wait',  
              'sq', 'sequence number',  
              'te', 'extend table',  
              'tt', 'temp table',  
              'unknown') locktype,  
       decode(a.lmode,  
                0, 'none',  
                1, 'null',  
                2, 'row-s',  
                3, 'row-x',  
                4, 'share',  
                5, 's/row-x',  
                6, 'exclusive', 'unknown') lockmode  
  from v$lock a, v$session b, all_objects c, v$process d  
 where a.sid = b.sid  
   and a.type in ('tm','tx')  
   and c.object_id = a.id1  
   and b.paddr = d.addr;  
  
-- 殺掉進程  
-- alter system kill session 'sid,serial#';