Database Journal
MS SQL Oracle DB2 Access MySQL PostgreSQL Sybase PHP SQL Etc SQL Scripts & Samples Links Database Forum

» Database Journal Home
» Database Articles
» Database Tutorials
MS SQL
Oracle
DB2
MS Access
MySQL
» RESOURCES
Database Tools
SQL Scripts & Samples
Links
» Database Forum
» Sitemap
Free Newsletters:
DatabaseDaily  
News Via RSS Feed


follow us on Twitter
Database Journal |DBA Support |SQLCourse |SQLCourse2
 

Featured Database Articles

SQL Scripts & Samples

Posted Aug 11, 2008

Lock Monitoring

By DatabaseJournal.com Staff



>>Script Language and Platform: Oracle
You can run this script on any Oracle version of database to find out the lock details.

Author: T.N.V.R.L.S Gupta


set echo off
col sid form 9999
col id1 form 9999999999
col id2 form 999999999
col lmode head "Lock Held" form a14
col request1 head "Lock Request" form a16
col type head "Lock Type" form a15
col ctime head "Time|Held" form 999999
col block head "No Of |Sessions|Waiting|For This|Lock" form 99999
select sid,
DECODE(TYPE, 
'BL','Buffer hash table', 
'CF','Control File Transaction', 
'CI','Cross Instance Call', 
'CS','Control File Schema', 
'CU','Bind Enqueue', 
'DF','Data File', 
'DL','Direct-loader index-creation', 
'DM','Mount/startup db primary/secondary instance', 
'DR','Distributed Recovery Process', 
'DX','Distributed Transaction Entry', 
'FI','SGA Open-File Information', 
'FS','File Set', 
'IN','Instance Number', 
'IR','Instance Recovery Serialization', 
'IS','Instance State', 
'IV','Library Cache InValidation', 
'JQ','Job Queue', 
'KK','Redo Log "Kick"', 
'LS','Log Start/Log Switch', 
'MB','Master Buffer hash table', 
'MM','Mount Definition', 
'MR','Media Recovery', 
'PF','Password File', 
'PI','Parallel Slaves', 
'PR','Process Startup', 
'PS','Parallel Slaves Synchronization', 
'RE','USE_ROW_ENQUEUE Enforcement', 
'RT','Redo Thread', 
'RW','Row Wait', 
'SC','System Commit Number', 
'SH','System Commit Number HWM', 
'SM','SMON', 
'SQ','Sequence Number', 
'SR','Synchronized Replication', 
'SS','Sort Segment', 
'ST','Space Transaction', 
'SV','Sequence Number Value', 
'TA','Transaction Recovery', 
'TD','DDL enqueue', 
'TE','Extend-segment enqueue', 
'TM','DML enqueue', 
'TS','Temporary Segment', 
'TT','Temporary Table', 
'TX','Transaction', 
'UL','User-defined Lock', 
'UN','User Name', 
'US','Undo Segment Serialization', 
'WL','Being-written redo log instance', 
'WS','Write-atomic-log-switch global enqueue', 
'XA','Instance Attribute', 
'XI','Instance Registration', 
decode(substr(TYPE,1,1), 
'L','Library Cache ('||substr(TYPE,2,1)||')', 
'N','Library Cache Pin ('||substr(TYPE,2,1)||')', 
'Q','Row Cache ('||substr(TYPE,2,1)||')', 
'????')) TYPE, 
id1,id2,
decode(lmode,0,'None(0)',1,'Null(1)',2,'Row Share(2)',3,'Row Exclu(3)',
4,'Share(4)',5,'Share Row Ex(5)',6,'Exclusive(6)') lmode,
decode(request,0,'None(0)',1,'Null(1)',2,'Row Share(2)',3,'Row Exclu(3)',
4,'Share(4)',5,'Share Row Ex(5)',6,'Exclusive(6)') request1,
ctime,block
from v$lock 
where sid>5
and type not in ('MR','RT')
order by decode(request,0,0,2),block,5
/


Disclaimer: We hope that the information on these script pages is valuable to you. Your use of the information contained in these pages, however, is at your sole risk. All information on these pages is provided "as -is", without any warranty, whether express or implied, of its accuracy, completeness, or fitness for a particular purpose... Disclaimer Continued


Back to Database Journal Home



SQL Scripts & Samples Archives

Comment and Contribute

 


(Maximum characters: 1200). You have characters left.

 

 




Latest Forum Threads
SQL Scripts & Samples Forum
Topic By Replies Updated
sql help!! add 1 August 22nd, 11:58 AM
How To Combine These 2 Queries into 1 Query ? tarek_land 1 June 7th, 08:37 AM
solving query svibuk 1 February 3rd, 06:08 AM
converting from a character string to uniqueidentifier saturnius 4 January 4th, 05:56 AM


















Thanks for your registration, follow us on our social networks to keep up-to-date