Category: SQL scripts

Metalink Note: Note:250655.1 : ADDM Basics USING THE AUTOMATIC DATABASE DIAGNOSTIC MONITOR —————————————————————————————— The Automatic Database Diagnostic Monitor (hereafter called ADDM) is an integral part of the Oracle RDBMS capable of gathering performance statistics and advising on changes to solve any exitsing performance issues measured. For this it uses the Automatic Workload Repository ( hereafter…

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exp userid=cs/cs file=cs_uocqa_30aug05.dmp owner=cs statistics=none exp userid=scsedb/scsedb file=scsedb_uocqa_30aug05.dmp owner=scsedb statistics=none exp userid=retaildb/retaildb file=retaildb_uocqa_30aug05.dmp owner=retaildb statistics=none exp userid=pnet/pnet file=pnet_uocqa_30aug05.dmp owner=pnet statistics=none exp userid=websitedb/websitedb file=websitedb_uocqa_30aug05.dmp owner=websitedb statistics=none imp userid=cs/cs file=cs_uocqa_30aug05.dmp fromuser=cs touser=cs imp userid=scsedb/scsedb file=scsedb_uocqa_30aug05.dmp fromuser=scsedb touser=scsedb imp userid=retaildb/retaildb file=retaildb_uocqa_30aug05.dmp fromuser=retaildb touser=retaildb imp userid=pnet/pnet file=pnet_uocqa_30aug05.dmp fromuser=pnet touser=pnet imp userid=websitedb/websitedb file=websitedb_uocqa_30aug05.dmp fromuser=websitedb touser=websitedb

/********* Wait.sql ************/ set pages 2000 set lines 132 column p1text format a18 column event format a35 column WT format 9999 column SW format 9999 select sid, event,p1text,p1raw,p1,p2,p3,seconds_in_Wait “SW”,Wait_time “WT” from v$session_wait where event not in( ‘KXFQ: Dequeue Range Keys – Slave’, ‘KXFQ: Dequeuing samples’, ‘KXFQ: kxfqcls – consumer closing TQ’, ‘KXFQ: kxfqdeq – dequeue…

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Renaming oracle instance (from UOCTEST to UAS) Note : Remember to rename datafile, logfile, controlfile, parameterfile and passwordfile. Aslo need to change listener. ******** Parameter File *************************** (1) check whether instance is using SPFIlE. using “show parameter spfile” (2) SQL> connect / as sysdba SQL> “create pfile from spfile” in 10g by default it will…

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Make sure the entry for your database SID in the ORATAB file ends in a capital “Y”. Eg: # $ORACLE_SID:$ORACLE_HOME:[N|Y] # ORCL:/u01/app/oracle/product/8.0.5:Y # The scripts for starting and stopping databases are: $ORACLE_HOME/bin/dbstart and dbshut. SQL*Net (or Net8) is started with the lsnrctl command. Add the following entries to your /etc/rc2.d/S99dbstart (or equivalent) file: su –…

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How does one list all installed Oracle products? One can display all installed products with version information by executing one of the following commands. For Oracle7 up to 8.0: cd $ORACLE_HOME/orainst ./inspdver For Oracle 8i and above: cd $ORACLE_HOME/install cat unix.rgs

Can one export directly to a tape drive? —————————————– One can use a tape device name instead of a normal file name. When using a device, one also needs to specify the VOLSIZE= parameter. Look at this example: exp userid/password file=/dev/rmt0 table=emp volsize=1.2G Note: The volume size is a number ending with a “m”, “k”,…

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If one cannot afford to buy extra disk space one can run the export and compress utilities simultaneously. This will prevent the need to get enough space for both the export file AND the compressed export file. Eg: # Make a pipe mknod expdat.dmp p # or mkfifo pipe # Start compress sucking on the…

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Metalink Performance Library Index

BENEFITS of Locally Managed Tablespaces ————————————— Locally managed tablespaces track all extent information in the tablespace itself, using bitmaps, resulting in the following benefits: * Improved concurrency and speed of space operations, because space allocations and deallocations predominantly modify locally managed resources (bitmaps stored in header files) rather than requiring centrally managed resources such as…

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