Oracle Database is a multi-model database management system produced and marketed by Oracle Corporation. It is a database commonly used for running online transaction processing, data warehousing and mixed database workloads.
When it comes to set up and running the Oracle database on a virtual machine or server then it could be a little tricky and tough sometimes.
In this tutorial, we will learn how to set up an Oracle database on a remote server and access it by using our browser.
Create virtual machine in azure
To create a virtual machine in Microsoft azure you should have an Azure account. After log into the account click on the
Create a resource button.
After going inside the marketplace search for Oracle. You will see many options for many editions of the Oracle database. We will create an
Oracle Database 126.96.36.199 Enterprise Edition.
After selecting the option you will see a new window. Simply click on create button and let the process begin.
After clicking on create, fill all the necessary fields and click on
After the validation click on the create button again. Now we have our oracle database virtual machine in the deployment process. After successful deployment, we will access our VM using our CLI and make some configuration to make it usable and accessible.
After the successful deployment, we will see the Go to resource option.
After clicking on the
Go to resources option you will see a window that contains all details about the oracle database virtual machine including a
Public IP Address.
Cheers! We have completed the first stage of the database deployment. Now we will make some necessary configurations in our database VM to make it accessible.
Connect to VM using CLI
$ ssh azureuser@<publicIpAddress>
Create the database
The Oracle software is already installed on the Marketplace image. Create a sample database as follows.
- Switch to the oracle user, then start the Oracle listener:
$ sudo -su oracle $ lsnrctl start
The output is similar to the following:
LSNRCTL for Linux: Version 188.8.131.52.0 - Production on 07-NOV-2020 08:27:42 Copyright (c) 1991, 2014, Oracle. All rights reserved. Starting /u01/app/oracle/product/12.1.0/dbhome_1/bin/tnslsnr: please wait... TNSLSNR for Linux: Version 184.108.40.206.0 - Production Log messages written to /u01/app/oracle/diag/tnslsnr/thelovekesh/listener/alert/log.xml Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=thelovekesh.wqkfrhyq2wsuxdjccolz0wd3ee.bx.internal.cloudapp.net)(PORT=1521))) Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521)) STATUS of the LISTENER ------------------------ Alias LISTENER Version TNSLSNR for Linux: Version 220.127.116.11.0 - Production Start Date 07-NOV-2020 08:27:43 Uptime 0 days 0 hr. 0 min. 1 sec Trace Level off Security ON: Local OS Authentication SNMP OFF Listener Log File /u01/app/oracle/diag/tnslsnr/thelovekesh/listener/alert/log.xml Listening Endpoints Summary... (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=thelovekesh.wqkfrhyq2wsuxdjccolz0wd3ee.bx.internal.cloudapp.net)(PORT=1521))) The listener supports no services The command completed successfully
2. Create a data directory for the Oracle data files
3. Create the database:
dbca -silent \ -createDatabase \ -templateName General_Purpose.dbc \ -gdbname cdb1 \ -sid cdb1 \ -responseFile NO_VALUE \ -characterSet AL32UTF8 \ -sysPassword OraPasswd1 \ -systemPassword OraPasswd1 \ -createAsContainerDatabase true \ -numberOfPDBs 1 \ -pdbName pdb1 \ -pdbAdminPassword OraPasswd1 \ -databaseType MULTIPURPOSE \ -automaticMemoryManagement false \ -storageType FS \ -datafileDestination "/u01/app/oracle/oradata/" \ -ignorePreReqs
It takes a few minutes to create the database.
You will see output that looks similar to the following:
Copying database files 1% complete 2% complete 8% complete 13% complete 19% complete 27% complete Creating and starting Oracle instance 29% complete 32% complete 33% complete 34% complete 38% complete 42% complete 43% complete 45% complete Completing Database Creation 48% complete 51% complete 53% complete 62% complete 70% complete 72% complete Creating Pluggable Databases 78% complete 100% complete Look at the log file "/u01/app/oracle/cfgtoollogs/dbca/cdb1/cdb1.log" for further details.
4. Set Oracle variables
Before you connect, you need to set two environment variables: ORACLE_HOME and ORACLE_SID.
ORACLE_SID=cdb1; export ORACLE_SID
You also can add ORACLE_HOME and ORACLE_SID variables to the
.bashrc file. This would save the environment variables for future sign-ins. Confirm the following statements have been added to the
~/.bashrc file using editor of your choice.
# Add ORACLE_SID. export ORACLE_SID=cdb1
Oracle EM Express connectivity
For a GUI management tool that you can use to explore the database, set up Oracle EM Express. To connect to Oracle EM Express, you must first set up the port in Oracle.
- Connect to your database using
sqlplus / as sysdba
2. Once connected, set the port 5502 for EM Express
3. Open the container PDB1 if not already opened, but first check the status:
select con_id, name, open_mode from v$pdbs;
The output is similar to the following:
CON_ID NAME OPEN_MODE ----------- ------------------------- ---------- 2 PDB$SEED READ ONLY 3 PDB1 READ WRITE
4. If the OPEN_MODE for
PDB1 is not READ WRITE, then run the followings commands to open PDB1:
alter session set container=pdb1; alter database open;
You need to type
quit to end the
sqlplus session and type
exit to logout of the oracle user.
Automate database startup and shutdown
The Oracle database by default doesn't automatically start when you restart the VM. To set up the Oracle database to start automatically, first sign in as root. Then, create and update some system files.
- Sign on as root
sudo su -
2. Using your favorite editor, edit the file
/etc/oratab and change the default
3. Create a file named
/etc/init.d/dbora and paste the following contents:
#!/bin/sh # chkconfig: 345 99 10 # Description: Oracle auto start-stop script. # # Set ORA_HOME to be equivalent to $ORACLE_HOME. ORA_HOME=/u01/app/oracle/product/12.1.0/dbhome_1 ORA_OWNER=oracle case "$1" in 'start') # Start the Oracle databases: # The following command assumes that the Oracle sign-in # will not prompt the user for any values. # Remove "&" if you don't want startup as a background process. su - $ORA_OWNER -c "$ORA_HOME/bin/dbstart $ORA_HOME" & touch /var/lock/subsys/dbora ;; 'stop') # Stop the Oracle databases: # The following command assumes that the Oracle sign-in # will not prompt the user for any values. su - $ORA_OWNER -c "$ORA_HOME/bin/dbshut $ORA_HOME" & rm -f /var/lock/subsys/dbora ;; esac
4. Change permissions on files with
chmod as follows:
chgrp dba /etc/init.d/dbora chmod 750 /etc/init.d/dbora
5. Create symbolic links for startup and shutdown as follows:
ln -s /etc/init.d/dbora /etc/rc.d/rc0.d/K01dbora ln -s /etc/init.d/dbora /etc/rc.d/rc3.d/S99dbora ln -s /etc/init.d/dbora /etc/rc.d/rc5.d/S99dbora
6. To test your changes, restart the VM:
Open ports for connectivity
The final task is to configure some external endpoints.
1. Click on networking from the options available.
2. Now click on Add inbound port rule and add the following rules in your networking as follows:
Connect to EM Express from your browser
Make sure your browser is compatible with EM Express (Flash install is required):
https://<VM ip address or hostname>:5502/em
You can log in by using the SYS account, and check the
as sysdba checkbox. Use the password
OraPasswd1 that you set during installation.
After successfully login you will see a screen like this:
We have successfully setup Oracle Database in Azure VM. If you face any problem feel free to reach me on twitter.