pvmehta.com

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

29-Sep-2005 Admin No Comments

========================= 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:->…

Oracle, SQL scripts

Removing Blank lines from file using grep

28-Sep-2005 Admin No Comments

grep -v “^$” filename > newfilename

Linux/Unix, shell

Useful Solaris Commands on 28-SEP-2005

28-Sep-2005 Admin No Comments

* 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

28-Sep-2005 Admin No Comments

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

Linux/Unix, shell

Oracle 10g Installation/Applying Patches Tips

28-Sep-2005 Admin No Comments

*******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

28-Sep-2005 Admin No Comments

(*) 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…

Linux/Unix, shell

SYSOPER Mystery

26-Sep-2005 Admin No Comments

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…

Standby Database File Management in 10g with STANDBY_FILE_MANAGEMENT

23-Sep-2005 Admin No Comments

========================================== Adding a Datafile or Creating a Tablespace ========================================== The initialization parameter, STANDBY_FILE_MANAGEMENT, enables you to control whether or not adding a datafile to the primary database is automatically propagated to the standby database, as follows: * If you set the STANDBY_FILE_MANAGEMENT initialization parameter in the standby database server parameter file (SPFILE) to AUTO, any…

Oracle, rman-dataguard

Set Role explaination.

23-Sep-2005 Admin No Comments

“Set Role” statement. ( Remember : It affects current session only ) Use the SET ROLE statement to enable and disable roles for your current session. This statement will be useful when you want to give special privilege to specific user for a specific period of time. When a user logs on, Oracle Database enables…

Read More “Set Role explaination.” »

Oracle, SQL scripts

online_bkup.sql

15-Sep-2005 Admin No Comments

set serveroutput on execute dbms_output.enable(20000); declare cursor c1 is select distinct tablespace_name from dba_data_files order by tablespace_name; cursor c4 is select member from v$logfile order by member; staging_copy_area varchar2(100) := ‘10.201.43.51:/uocdb1/oradata/UOC’; begin for cur in c1 loop dbms_output.put_line (‘alter tablespace ‘ || cur.tablespace_name || ‘ begin backup;’); declare cursor c2 is select file_name from dba_data_files…