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SQL_PLAN.sql for checking real execution plan

Posted on 20-Jul-2006 By Admin No Comments on SQL_PLAN.sql for checking real execution plan

set lines 132 set pages 1400 SELECT LPAD(‘ ‘,2*(LEVEL-1))||operation||’ ‘||options ||’ ‘||object_name ||’ ‘|| DECODE(id, 0, ‘Cost = ‘||position) “Query Plan” FROM v$sql_plan START WITH id = 0 and sql_id=’4ftvbpzhwkfd8′ and child_number=0 CONNECT BY PRIOR id = parent_id and sql_id=’4ftvbpzhwkfd8′ and child_number=0;

Oracle, SQL scripts

Good Doc 28-JUN-2006

Posted on 28-Jun-2006 By Admin No Comments on Good Doc 28-JUN-2006

Good Doc About UNDO Management: http://asktom.oracle.com/pls/ask/f?p=4950:8:::::F4950_P8_DISPLAYID:6894817116500 Cache Buffer Chain Latch: http://www.orafaq.com/maillist/oracle-l/2003/02/27/2671.raw

Oracle, SQL scripts

How to stop OCSSD Daemon

Posted on 28-Jun-2006 By Admin No Comments on How to stop OCSSD Daemon

/etc/init.d/init.cssd stop to stop cssd process.

Oracle, SQL scripts

Follwoing korn shell is used to move files from source folder to destination folder and gzip it in destination folder. mv_iotto.ksh

Posted on 20-Jun-2006 By Admin No Comments on Follwoing korn shell is used to move files from source folder to destination folder and gzip it in destination folder. mv_iotto.ksh

#!/usr/bin/ksh a=`ps -ef|grep “mv_iotto.ksh”|grep -v grep|wc -l` if [ $a -gt 2 ] then echo “Exiting because of more than 1 Moving archive log script is running ” exit fi for fname in `ls -rlt /tmpdb2/oradata/UOCIOTTO_ARCH/*.arc | awk ‘{print $9}’ | sed ‘$d’ | sed ‘$d’` do print “”; print “File Name : $fname “;…

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Linux/Unix, shell

sess_server.sql

Posted on 20-Jun-2006 By Admin No Comments on sess_server.sql

column osuser format a10 column username format a30 column machine format a30 column program format a50 set lines 132 set pages 500 select osuser, username, machine, program from v$session; select machine, username, count(1) from v$session group by machine, username;

Oracle, SQL scripts

My Minimum Tuning Programs

Posted on 20-Jun-2006 By Admin No Comments on My Minimum Tuning Programs

REM ***** gsp.sql ***** REM ***** This is used to get SPID from SID. col username format a30 col machine format a20 col program format a40 accept _sid prompt ‘Enter Oracle Session ID ->’ select a.sid, b.pid, b.spid, a.username,a.program,a.machine from v$session a,V$process b where a.paddr = b.addr and a.sid = &_sid / REM ***** gsq.sql…

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Oracle, SQL scripts

How to find who is using which Rollback segment and how many rows or blocks in that rollback segments,

Posted on 16-Jun-2006 By Admin No Comments on How to find who is using which Rollback segment and how many rows or blocks in that rollback segments,

Using following query, we can estimate # of rows resides in each USN (Rollback Segment) and who fired that transactions. New modified GCU.sql on 16-JUN-2006 /* Get Curent USN */ column start_dt format a20 set lines 132 select /*+ ALL_ROWS */ a.usn, a1.name, a.extents, a.hwmsize, a.status usn_status, to_char(b.start_date, ‘DD-MON-RRRR:HH24:MI:SS’) start_dt, b.status tx_status, c.sid, c.sql_id, b.used_ublk,…

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Oracle, SQL scripts

Generate SSH without password authentication.

Posted on 14-Jun-2006 By Admin No Comments on Generate SSH without password authentication.

*******************************************************************************************Step by Step Implementation of key based authentications from Source A to Destination B. ******************************************************************************************* (1) At source A (1-A) Generate a Key ssh-keygen -t dsa Sampe Output posdbprod21->CIF@(/export/home/oracle/paresh)ssh-keygen -t dsa Generating public/private dsa key pair. Enter file in which to save the key (/export/home/oracle/.ssh/id_dsa): Enter passphrase (empty for no passphrase): Enter same passphrase again:…

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Linux/Unix, shell

How to find Unix server conguraiton including Server Model number and underlying disk sub-system ( On Solaris)

Posted on 12-Jun-2006 By Admin No Comments on How to find Unix server conguraiton including Server Model number and underlying disk sub-system ( On Solaris)

$ /usr/platform/sun4u/sbin/prtdiag System Configuration: Sun Microsystems sun4u 8-slot Sun Enterprise E4500/E5500 System clock frequency: 100 MHz Memory size: 10240Mb ========================= CPUs ========================= Run Ecache CPU CPU Brd CPU Module MHz MB Impl. Mask — — ——- —– —— —— —- 0 0 0 400 8.0 US-II 1.0 0 1 1 400 8.0 US-II 1.0 2…

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Linux/Unix, shell

How to Decide upto what level you can decrement your datafile size. ( Shrink Datafile)

Posted on 12-Jun-2006 By Admin No Comments on How to Decide upto what level you can decrement your datafile size. ( Shrink Datafile)

We can directly resize datafiles TEST.SQL>SELECT FILE_NAME, BYTES FROM DBA_DATA_FILES WHERE TABLESPACE_NAME=’SYSTEM’; FILE_NAME BYTES —————- ———- /…/dbsGNX.dbf 419430400 TEST.SQL>ALTER DATABASE DATAFILE ‘/…/dbsGNX.dbf’ RESIZE 390M; Database altered. TEST.SQL>SELECT FILE_NAME, BYTES FROM DBA_DATA_FILES WHERE TABLESPACE_NAME=’SYSTEM’; FILE_NAME BYTES ————— ———- /…/dbsGNX.dbf 408944640 But the minimum file size is the size of the extend the furthest in the datafile:…

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Oracle, SQL scripts

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