最近遇到truncate表,无法清理的情况,在master节点查看加锁情况,并未加锁这种情况极有可能是segment节点相关表加了锁,所以遇到这种情况除了排查master节点的锁,所有的segment也要查看锁的持有情况,然后根据情况,进行处理. master节点:查看segment锁情况select gp_execution_dbid(), pid, relation::regclass, locktype, mode, granted  from gp_dist_random('pg_loc

 查看锁表进程SQL语句1: select sess.sid,     sess.serial#,     lo.oracle_username,     lo.os_user_name,     ao.object_name,     lo.locked_mode     from v$locked_object lo,     dba_objects ao,     v$session sess where ao.object_id = lo.object_id and lo.session

sqlserver锁表.解锁.查看锁表 http://www.cnblogs.com/zfanlong1314/p/3698566.html http://www.cnblogs.com/chjf2008/archive/2012/11/21/2780787.html http://www.cnblogs.com/changbluesky/archive/2010/06/10/1753021.html

select sess.sid,     sess.serial#,     lo.oracle_username,     lo.os_user_name,     ao.object_name,     lo.locked_mode     from v$locked_object lo,     dba_objects ao,     v$session sess where ao.object_id = lo.object_id and lo.session_id = sess.sid;

--查看锁表: select request_session_id spid,OBJECT_NAME(resource_associated_entity_id) tableName from sys.dm_tran_locks where resource_type='OBJECT' --解锁: declare @spid int Set @spid = 57 --锁表进程 declare @sql varchar(1000) set @sql='kill '+cast(@spid as va

查看锁表进程SQL语句1: select sess.sid, sess.serial#, lo.oracle_username, lo.os_user_name, ao.object_name, lo.locked_mode from v$locked_object lo, dba_objects ao, v$session sess where ao.object_id = lo.object_id and lo.session_id = sess.sid; 查看锁表进程SQL语句2: sel

查看锁表语句 show OPEN TABLES where In_use > 0; 找到锁表的进程 show processlist;  删除锁表进程 kill 51045123;

  oracle 查看锁表情况与解表 CreateTime--2018年4月27日17:24:37 Author:Marydon 1.锁表查询 --锁表查询 SELECT OBJECT_NAME AS TABLE_NAME, MACHINE, S.SID, S.SERIAL# FROM GV$LOCKED_OBJECT L, DBA_OBJECTS O, GV$SESSION S WHERE L.OBJECT_ID = O.OBJECT_ID AND L.SESSION_ID = S.SID;

查看锁表进程SQL语句1: select sess.sid,     sess.serial#,     lo.oracle_username,     lo.os_user_name,     ao.object_name,     lo.locked_mode     from v$locked_object lo,     dba_objects ao,     v$session sess where ao.object_id = lo.object_id and lo.session_

查看锁表进程SQL语句   set pagesize 999 set line180 col ORACLE_USERNAME for a18 col OS_USER_NAME for a18 col OBJECT_NAME  for a24 select sess.sid,     sess.serial#,     lo.oracle_username,     lo.os_user_name,     ao.object_name,     lo.locked_mode     from v

查看被锁表: 代码如下 复制代码 select request_session_id spid,OBJECT_NAME(resource_associated_entity_id) tableName from sys.dm_tran_locks where resource_type='OBJECT' spid 锁表进程 tableName 被锁表名 [@more@] 解锁: 创建一个临时Table 代码如下 复制代码 CREATE TABLE #HarveyLock(SPID INT,DBI

-- 查看那些表锁到了show OPEN TABLES where In_use > 0;-- 查看进程号show processlist;--删除进程 kill 42236:

1.select * from sys.dm_tran_locks或sp_LOCK 查看request_node 字段中为'X'(排他锁)或'IX'(意向排他锁)2.用sp_who2 + pid(进程ID) 查看进程的详细信息3.用dbcc inputbuffer(pid) 查看一起死锁的语句内容 发生阻塞时,透过以下命令,可看出是哪个进程 session id,阻塞了哪几个进程 session id,且期间经过了多少「毫秒 (ms)」.如下图 3 里 session id = 53 阻塞了 s

查看被锁表: select request_session_id spid,OBJECT_NAME(resource_associated_entity_id) tableName from sys.dm_tran_locks where resource_type='OBJECT' spid 锁表进程 tableName 被锁表名 解锁: declare @spid int --锁表进程 ) set @sql='kill '+cast(@spid as varchar) exec(@sql)

(1)锁表查询的代码有以下的形式:select count(*) from v$locked_object;select * from v$locked_object;(2)查看哪个表被锁select b.owner,b.object_name,a.session_id,a.locked_mode from v$locked_object a,dba_objects b where b.object_id = a.object_id;(3)查看是哪个session引起的select b.user

某些情况下,sqlserver的表会被锁住,比如某个会话窗口有数据一直没提交,窗口又没关闭,这时表就会被锁住 其他任何连接查询表数据时都不会返回 这时需要手工杀掉产生死锁的会话ID,才能恢复正常 查看被锁表: select   request_session_id   spid,OBJECT_NAME(resource_associated_entity_id) tableName   from   sys.dm_tran_locks where resource_type='OBJECT' s

/* *locked *query locked object and analyse reason,kill it * */ select 'alter system kill session ''' || SID || ',' || SERIAL# || ''';' from (select distinct a.sid, a.Serial#, status, machine, LOCKWAIT, logon_time from v$session a, v$locked_object b

select request_session_id spid,object_name(resource_associated_entity_id) tableName from sys.dm_tran_locks where resource_type='object' --spid  锁表进程 --tableName 被锁表名 --解锁: declare @spid int Set @spid =57--锁表进程 declare @sql varchar(1000) set @sql='kil

mysql> show status like 'Table%'; +----------------------------+----------+ | Variable_name        | Value | +----------------------------+----------+ | Table_locks_immediate | 105         | | Table_locks_waited   | 3           | +-------------------

--注意权限问题 1.查看是否有被锁的表: select b.owner,b.object_name,a.session_id,a.locked_mode from v$locked_object a,dba_objects b where b.object_id = a.object_id 2.查看是哪个进程锁的 select b.username,b.sid,b.serial#,logon_time from v$locked_object a,v$session b where a.ses

解锁语句: alter system kill session 'sid, serial#'; alter system kill session '23, 1647'; 查询那些对象被锁: select object_name,machine,s.sid,s.serial# from v$locked_object l,dba_objects o ,v$session s where l.object_id = o.object_id and l.session_id=s.sid; 杀死一个进