Category: Oracle

“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…

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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…

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SYS_GUID generates and returns a globally unique identifier (RAW value) made up of 16 bytes. On most platforms, the generated identifier consists of a host identifier and a process or thread identifier of the process or thread invoking the function, and a nonrepeating value (sequence of bytes) for that process or thread. The following example…

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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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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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