How to Modify the statistics collection by MMON for AWR repository

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From 10g onwards the MMON process wakes up by default every hour and does statistics collection for AWR (Automatic Workload Repository). 10g provides the following procedure for modify this statistics collection routine: DBMS_WORKLOAD_REPOSITORY.MODIFY_SNAPSHOT_SETTINGS(( retention IN NUMBER DEFAULT NULL, interval IN NUMBER DEFAULT NULL, dbid IN NUMBER DEFAULT NULL); This example changes the interval setting to…

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Oracle, SQL scripts

Metalink Note: Note:250655.1 : ADDM Basics USING THE AUTOMATIC DATABASE DIAGNOSTIC MONITOR

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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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Oracle, SQL scripts

Shuffle an array

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#!c:perlbinperl use List::Util ‘shuffle’; # Following line is necessary of you are using perl to write html in browser. print “Content-type: text/htmlnn”; print ““; print “CGI Test“; print ““; print “Newer Verion of File Management Operations !“; @list=(“one”, “two”, “three”, “four”, “five”, “six”, “seven”, “eight”, “nine”, “ten”); print “list = @list”; @shuffled = shuffle(@list); print…

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PHP/MYSQL/Wordpress

To seee semaphores and shared memory segments in Solaris

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eaappprod21->UAS@(/export/home/oracle/paresh/uocuat)ipcs -A IPC status from as of Wed Aug 31 15:17:54 EDT 2005 T ID KEY MODE OWNER GROUP CREATOR CGROUP CBYTES QNUM QBYTES LSPID LRPID STIME RTIME CTIME Message Queues: T ID KEY MODE OWNER GROUP CREATOR CGROUP NATTCH SEGSZ CPID LPID ATIME DTIME CTIME ISMATTCH Shared Memory: m 0 0x500004cf –rw-r–r– root root…

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Linux/Unix, shell

To see mem usage and CPU usage system wide.

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Use $ top last pid: 17552; load averages: 0.04, 0.03, 0.04 15:16:01 93 processes: 88 sleeping, 2 zombie, 3 on cpu CPU states: % idle, % user, % kernel, % iowait, % swap Memory: 8192M real, 3841M free, 2867M swap in use, 5629M swap free PID USERNAME THR PRI NICE SIZE RES STATE TIME CPU…

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Linux/Unix, shell

Import and export statements

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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

Oracle, SQL scripts

Wait Based Tuning Step by step with SQL statement

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/********* 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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Oracle, SQL scripts

Renaming Oracle Instance Name

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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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Oracle, SQL scripts

Monitor and Trace Unix processes using truss

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How does one monitor and trace Unix processes? To trace what a Unix process is doing enter: truss -rall -wall -p truss -p $ lsnrctl dbsnmp_start NOTE: The “truss” command works on SUN and Sequent. Use “tusc” on HP-UX, “strace” on Linux, “trace” on SCO Unix or call your system administrator to find the equivalent…

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Linux/Unix, shell