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  • get_ratio.sql get the ratio of users from v$session and this uses CASE-WHEN-THEN clause Oracle
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Author: Admin

SAN

Posted on 04-Oct-2005 By Admin No Comments on SAN

For Example, Db size : 461 GB. On SAN EMC FC4700

Linux/Unix, shell

OPENING A STANDBY DATABASE IN READ-ONLY MODE

Posted on 30-Sep-2005 By Admin No Comments on OPENING A STANDBY DATABASE IN READ-ONLY MODE

OPENING A STANDBY DATABASE IN READ-ONLY MODE ——————————————— In order to perform queries on a read-only standby database, the database needs to be able to perform on-disk sorting operations. Locally managed temporary tablespaces do not record transactions in the data dictionary. Steps to create a locally managed temporary tablespace 1. Create a temporary tablespace on…

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Oracle, rman-dataguard

Oracle Standby Database Library Index from Metalink

Posted on 30-Sep-2005 By Admin No Comments on Oracle Standby Database Library Index from Metalink

267931.1

Oracle, rman-dataguard

Test Case for Inserting Multiple (2.3 Million rows in 26 Seconds)

Posted on 29-Sep-2005 By Admin No Comments on Test Case for Inserting Multiple (2.3 Million rows in 26 Seconds)

========================= Test case On 29-SEP-2005 ========================= Original Statement: INSERT INTO pvm SELECT * FROM pvm1; Source table : pvm1 has 2.3 million rows. If statement executes normally it will take long time to execute. So i modified following statement and 2.3 Million rows processed in Approx 30 seconds. 10:39:11 CIF@CIF:-> set feedback 1 10:39:11 CIF@CIF:->…

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Oracle, SQL scripts

Removing Blank lines from file using grep

Posted on 28-Sep-2005 By Admin No Comments on Removing Blank lines from file using grep

grep -v “^$” filename > newfilename

Linux/Unix, shell

Useful Solaris Commands on 28-SEP-2005

Posted on 28-Sep-2005 By Admin No Comments on Useful Solaris Commands on 28-SEP-2005

* To Print System Configuration /usr/sbin/prtconf Above command is useful to view Memory available to this system as following. /usr/sbin/prtconf | grep “Memory size” You can also use “top” command to see total RAM and swap info. * To see Available Processor Info. (Processor Info). psrinfo

Linux/Unix, shell

nfs mount command

Posted on 28-Sep-2005 By Admin No Comments on nfs mount command

mount -F nfs 192.168.6.36:/cdrom/cdrom0 /mnt

Linux/Unix, shell

Oracle 10g Installation/Applying Patches Tips

Posted on 28-Sep-2005 By Admin No Comments on Oracle 10g Installation/Applying Patches Tips

*******Oracle 10g Installation ******* On 27-Sep-2005****** (1) *** Warning During Oracle 10.1.0.2 installation **** Checking security kernel parameters Checking for noexec_user_stack=1; found Not found. Failed

Oracle, SQL scripts

Important Solaris Commands

Posted on 28-Sep-2005 By Admin No Comments on Important Solaris Commands

(*) To determine the size of the configured swap space, enter the following command: /usr/sbin/swap -s (*) To determine whether the system architecture is 64-bit, enter the following command: /bin/isainfo -kv This command should return the following output. If you do not see the expected output, you cannot install the 64-bit Oracle software on this…

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Linux/Unix, shell

SYSOPER Mystery

Posted on 26-Sep-2005 By Admin No Comments on SYSOPER Mystery

Problem Description ~~~~~~~~~~~~~~~~~~~ A user connected AS SYSOPER can only STARTUP and SHUTDOWN the database, but cannot select any data from the dictionary, nor perform any other operations on the database. If you grant the appropriate privilege required to the OPERATOR user, it still does not work. Example: ~~~~~~~~ SVRMGR> CREATE USER operator IDENTIFIED BY…

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Oracle, SQL scripts

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