Where can I find Oratab?

Posted on by Muna Meyer

Where can I find Oratab?

Procedure

  1. oratab file is located in /var/opt/oracle directory. Edit the file as follows: From: vtdb:/appl/oracle/product/11.2.0/db_1:Y. To: vtdb:/appl/oracle/product/12.1.0.2.0/db_1:Y.
  2. oratab file is located in /etc directory. Edit the file as follows: From: vtdb:/appl/oracle/product/11.2.0/db_1:Y.

How do I check my Oratab entries?

Procedure

  1. Log in as oracle user.
  2. Edit the /var/opt/oracle/oratab file (on Solaris) or /etc/oratab (on AIX, RHEL), and change the entry. Be sure to disable automatic startup, by specifying N in the last field: From: PV:/opt/oracle/product/11.2.0:{Y|N} To: PV:/opt/oracle/product/12.1.0:Y.

How do I start an Oracle database automatically?

Quick Guide:

  1. You need your Database Entry in /etc/oratab: No mysteries with that. Just follow the pattern: $ORACLE_SID:$ORACLE_HOME: $ORACLE_SID:$ORACLE_HOME:
  2. Create file /etc/init.d/dbora: Edit with your environment configuration: #! /bin/sh. # description: Oracle auto start-stop script. #

What is Oracle Oratab?

Oratab is a colon-delimited text file on Unix and Linux systems that associates ORACLE_SID and ORACLE_HOME values. The last field contains a “Y” or “N” for database startup when the machine boots up. One can also use hashes (#) to start comment lines. Scripts like oraenv, dbhome, dbstart and dbshut use the oratab file.

Where is Oratab on Windows?

Oracle services and their ORACLE_HOMEs are listed in the oratab file, located in /etc/ on most platforms and in /var/opt/oracle/ on Solaris. To find what is running, we would usually use the ‘ps’ command and pipe it through grep to find and run PMON processes.

What is ETC Oratab?

Oratab is a colon-delimited text file on Unix and Linux systems that associates ORACLE_SID and ORACLE_HOME values. This file is either found in the /var/opt/oracle or the /etc directories. Scripts like oraenv, dbhome, dbstart and dbshut use the oratab file.

How do I set OracleHome to default in Windows?

On Windows:

  1. Right-click My Computer > Properties.
  2. Click Advanced system settings > Environment Variables.
  3. Click New in the System Variables panel.
  4. Add the ORACLE_HOME variable to the New System Variable box, then click OK.
  5. Select the PATH variable in the System Variables panel, and click Edit.

What is an oratab file?

“oratab” is a file created by Oracle in the /etc or /var/opt/oracle directory when installing database software. It is used to list the databases and software versions installed on a server. This file may contain comments staring with a pound signs…

What is an oratab entry not associated with a database?

This script shows an oratab entry not associated with a database. A dummy oratab entry like this can be useful on a system that does not yet have a database configured on it or on an Oracle Application Server or a Client install where there may never be a database.

Who creates Oracle ASM oratab entries?

The oratab file entry is also created automatically by the Database Agent when a database is first started on a node where it has not run previously. Oracle ASM Agent creates Oracle ASM oratab entries.

What are the three parts of an oratab?

Each line in the oratab file has three elements separated by colons. The first element is the SID, the second indicates the Oracle Home directory for that SID, and the third indicates if the database should be started and stopped by the dbstart/dbshut commands.