Oracle 11g Error Codes and Solution Suggestions from ORA-00000 to ORA-00100 ORA-00000: normal, successful completion Cause: Normal exit. Action: None ORA-00001: unique constraint (string.string) violated Cause: An UPDATE or INSERT statement attempted to insert a duplicate key. For Trusted Oracle configured in DBMS MAC mode, you may see this message if a duplicate entry exists…
Category: Oracle
Oracle 11g Data Guard Failover With Python Script
I wrote a python script to perform failover steps and to take product database IP addresses when product database is down. If you dont use data guard broker or other application for failover operations, you can use this script for failover. My scenario is that I have Oracle 11gR2 2 nodes RAC product database and…
Move Datafiles Of Tablespaces With RMAN Set Newname in Oracle 11g
You can move datafiles of tablespaces. Scenarios can be asm to file system or file system to file system or file system to file system or asm to asm. Below operations show how to move datafiles. You have to take a backup and database has to be archivelog mode before this operations because of that…
Auto Increment Primary Key With Trigger in Oracle 11g
You can provide auto increment primary with trigger by appling below operations. Create Table SQL> CREATE TABLE TESTUSER.TBL_TEST (id number primary key, name varchar2(100)); Create Sequence SQL> CREATE SEQUENCE TESTUSER.SEQ_TEST_ID START WITH 1 MAXVALUE 999999999 MINVALUE 1 CYCLE NOCACHE NOORDER; Create Trigger For Auto Increment SQL> CREATE OR REPLACE TRIGGER TESTUSER.TRG_AUTO_INC_TEST_ID before insert on TESTUSER.TBL_TEST…
How to Migrate Controlfile From File System to ASM Disk in Oracle 11g
You can migrate controlfile from file system to asm disk. You have to stop database and you can do that. Stop Database SQL> shutdown immediate; SQL> startup nomount; Migrate Controlfile RMAN> restore controlfile to ‘+DATA’ from ‘/tmp/controlfile_currentlocation.ctl’; RMAN> restore controlfile to ‘+FRA’ from ‘/tmp/controlfile_currentlocation.ctl’;
Oracle Cluster Service Control Commands CRSCTL
crsctl is Oracle Clusterware management command. You can check, start, stop clusterware with crsctl. crsctl command directory is $GRID_HOME/bin. You can do below operations with crsctl Starting and stopping Oracle Clusterware resources Enabling and disabling Oracle Clusterware daemons Checking the health of the cluster Managing resources that represent third-party applications Integrating Intelligent Platform Management Interface…
How to Change Oracle Enterprise Manager Port Number
If you want to change Oracle Enterprise Manager port number, you can use “emca -reconfig ports -DBCONTROL_HTTP_PORT ” command, this is simple. You can use to take security measure for Oracle EM. I will give 1820 as port for Oracle EM as example. Change Oracle Enterprise Manager Port
RMAN Encrypt Backup in Oracle
You can protect your backups with rman encryption. You have three ways to rman backup encryption. You can use wallet, password or dual mode. I will tell you password protection. Configure RMAN Backups With Password Protection rman target / RMAN> set encryption on identified by ‘yourpassword’ only; You can backup with backup database command. Do…
How to Create Oracle Wallet for Encrpytion
Oracle Wallet Manager is a password protected stand-alone Java application tool used to maintain security credentials and store SSL related information such as authentication and signing credentials, private keys, certificates, and trusted certificates. 1- Create Wallet Directory [oracle@testdb ~] cd $ORACLE_HOME [oracle@testdb db_home] mkdir -p ORA_WALLETS 2- Write Wallet Location Information in sqlnet.ora File [oracle@testdb…
How to Move Datafile to Different Directory in Oracle
You can move datafiles to different directory. You have to make offline tablespace or take mount mode database to change datafiles location. System, temporary and rollback tablespace can move only when database is mount mode. Show Tablespaces And Datafiles With Locations SQL> select tablespace_name, file_name from dba_data_files; Change Location Of Normal Datafile SQL> alter tablespace…