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    Find which sessions is accessing object that prevent your session to have exclusive locks in Oracle Oracle
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Year: 2008

Reclaim temp tablespace for oracle 8, 8i

Posted on 14-Apr-2008 By Admin No Comments on Reclaim temp tablespace for oracle 8, 8i

Case 1:- Allocate More space to temp tablespace before starting the analyze. U can reclaim space by doing. Alter tablespace temp offline; Alter tablespace temp online; Alter tablespace temp coaelsce; Case 2:- If there is some spcace then allocate around 10 GB of space to TEMP .

Oracle, SQL scripts

changing kernel parameter in Oracle Enterpise Linux

Posted on 11-Apr-2008 By Admin No Comments on changing kernel parameter in Oracle Enterpise Linux

change the file /etc/sysctl.conf for the kernel parameters. DBA generally do this for changing semaphore and shared memory parameters. Run the following command to change the current kernel parameters. $ /sbin/sysctl -p

Linux/Unix, shell

Temporary tablespace explaination

Posted on 10-Apr-2008 By Admin No Comments on Temporary tablespace explaination

A new mechanism to control the allocation of temporary storage space was introduced in 7.3, initially as support for OPS, but it is equally applicable to non-OPS environments. This requires the creation of a designated temporary tablespace, that is one created with the designation TEMPORARY. The effect of this is twofold: 1. No permanent objects…

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Oracle, SQL scripts

restarting network in linux

Posted on 09-Apr-2008 By Admin No Comments on restarting network in linux

Restart networking: # /etc/init.d/network restart

Linux/Unix, shell

How to change hostname in Linux

Posted on 09-Apr-2008 By Admin No Comments on How to change hostname in Linux

=> Edit file /etc/sysconfig/network using your favourite editor. => Look for HOSTNAME=xxxxxx => Change the xxxx to the name you wish to set for your computer. (ex: HOSTNAME=techiecorner.com) => Save the file and restart the server.

Linux/Unix, shell

good linux notes

Posted on 09-Apr-2008 By Admin No Comments on good linux notes

http://tldp.org/HOWTO/Partition/intro.html

Linux/Unix, shell

ORA-8031 issue and solution if it is occuring due to truncate.

Posted on 07-Apr-2008 By Admin No Comments on ORA-8031 issue and solution if it is occuring due to truncate.

After doing further research on Oracle errors from metalink, I found following for ORA-8031. CAUSE: The data_object_id (seg/obj) stored in the block is different than the data_object_id stored in the segment header. EXPLAINATION: The expected behavior can be that tables are being truncated while a query from those tables is still in execution. Look if…

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Oracle, SQL scripts

fdisk -l explaination about Primary-Logical-Extended Partitions

Posted on 06-Apr-2008 By Admin No Comments on fdisk -l explaination about Primary-Logical-Extended Partitions

# fdisk -l Disk /dev/hda: 240 heads, 63 sectors, 1940 cylinders Units = cylinders of 15120 * 512 bytes Device Boot Start End Blocks Id System /dev/hda 1 286 2162128+ c Win95 FAT32 (LBA) /dev/hda2 * 288 1940 12496680 5 Extended /dev/hda5 288 289 15088+ 83 Linux /dev/hda6 290 844 4195768+ 83 Linux /dev/hda7 845…

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Linux/Unix, shell

Drop database in Oracle 10g

Posted on 04-Apr-2008 By Admin No Comments on Drop database in Oracle 10g

Dropping a Database in 10G Consists of the following steps. echo $ORACLE_SID sqlplus “/as sysdba” SQL> startup nomount; ORACLE instance started. Total System Global Area 1077936128 bytes Fixed Size 2034344 bytes Variable Size 427824472 bytes Database Buffers 633339904 bytes Redo Buffers 14737408 bytes SQL> alter database mount exclusive; Database altered. SQL> alter system enable restricted…

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Oracle, SQL scripts

find the files that are 1 day old.

Posted on 15-Feb-2008 By Admin No Comments on find the files that are 1 day old.

find . -name “*” -type f -mtime -1 -exec ls -rlt {} ;

Linux/Unix, shell

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