Solved

Unlocking locked tables

Posted on 1997-09-02
5
1,643 Views
Last Modified: 2008-03-10
How can I unlock tables locked by a program that crashed, without having to restart the database instance?  The tables were locked EXCLUSIVE.
0
Comment
Question by:nesbit
  • 2
  • 2
5 Comments
 

Author Comment

by:nesbit
ID: 1080499
Adjusted points to 50
0
 

Author Comment

by:nesbit
ID: 1080500
Adjusted points to 100
0
 
LVL 1

Accepted Solution

by:
arh earned 100 total points
ID: 1080501
You should kill user session which crashed.
This releases all locks and server resources
hold by that session and does rollback of all
its current transactions.
 You can do it either in SQL*Dba screen mode
(Instance->Kill Session menu item) or in SQL*Plus
by 'alter system kill session' command (you should
have proper privilege, or, in other words,
connected as 'system').
 In SQL*Plus you should first determine 'sid' and
'serial number' of crashed session, usually it can
be found given its user name as
  select sid, serial# from v$session where username='USER_NAME';
Then you substitute these two numbers in alter system command:
  alter system kill session 'SID,SERIAL#';

0
 
LVL 1

Expert Comment

by:rodo
ID: 1080502
Arh is right.
In addition, if you are using Enterprise Manager in Windows 95 then you can also kill the session from the graphical "Top Sessions Manager" right-clicking on the crashed session.
0
 
LVL 1

Expert Comment

by:rodo
ID: 1080503
Arh is right.
In addition, if you are using Enterprise Manager in Windows 95 then you can also kill the session from the graphical tool "Top Sessions Manager" right-clicking on the crashed session.
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Article by: Swadhin
From the Oracle SQL Reference (http://download.oracle.com/docs/cd/B19306_01/server.102/b14200/queries006.htm) we are told that a join is a query that combines rows from two or more tables, views, or materialized views. This article provides a glimps…
Introduction A previously published article on Experts Exchange ("Joins in Oracle", http://www.experts-exchange.com/Database/Oracle/A_8249-Joins-in-Oracle.html) makes a statement about "Oracle proprietary" joins and mixes the join syntax with gen…
This video explains what a user managed backup is and shows how to take one, providing a couple of simple example scripts.
This video shows how to copy an entire tablespace from one database to another database using Transportable Tablespace functionality.

770 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question