查看 Oracle 数据库锁和解锁的方法

 1 -- 查看数据库锁明细  
 2 select a.sid, b.serial#, b.username, b.osuser, b.machine, b.program, c.object_name,d.spid,  
 3        decode(a.type,  
 4               'mr', 'media recovery',  
 5               'rt','redo thread',  
 6               'un','user name',  
 7               'tx', 'transaction',  
 8               'tm', 'dml',  
 9               'ul', 'pl/sql user lock',  
10               'dx', 'distributed xaction',  
11               'cf', 'control file',  
12               'is', 'instance state',  
13               'fs', 'file set',  
14               'ir', 'instance recovery',  
15               'st', 'disk space transaction',  
16               'ts', 'temp segment',  
17               'iv', 'library cache invalida-tion',  
18               'ls', 'log start or switch',  
19               'rw', 'row wait',  
20               'sq', 'sequence number',  
21               'te', 'extend table',  
22               'tt', 'temp table',  
23               'unknown') locktype,  
24        decode(a.lmode,  
25                 0, 'none',  
26                 1, 'null',  
27                 2, 'row-s',  
28                 3, 'row-x',  
29                 4, 'share',  
30                 5, 's/row-x',  
31                 6, 'exclusive', 'unknown') lockmode  
32   from v$lock a, v$session b, all_objects c, v$process d  
33  where a.sid = b.sid  
34    and a.type in ('tm','tx')  
35    and c.object_id = a.id1  
36    and b.paddr = d.addr;  
37   
38 -- 杀掉进程  
39 -- alter system kill session 'sid,serial#';