Showing posts with label database. Show all posts
Showing posts with label database. Show all posts

Saturday 22 December 2018

Installing Oracle 18c SQL Developer & Oracle 11g Express Edition Database on Ubuntu 16.04 LTS


             Installing Oracle SQL Developer & Oracle 11g Database in Ubuntu

NOTE: DO NOT MISS ANY LINE OR COMMAND MENTIONED HERE; 
BE EXTREMELY CAREFUL ELSE YOU WOULD NOT GET WHAT YOU WANT !

Install Oracle JAVA10 in ubuntu 16.04

sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java8-installer

To validate the Java installation, execute the following command:
java -version

This should result in the following (or something similar).

java version “1.7.0_51”
Java(TM) SE Runtime Environment (build 1.7.0_51-b13)
Java HotSpot(TM) 64-Bit Server VM (build 24.51-b03, mixed mode)

The next next step is to set the JAVA_HOME environment variable. To do this, open the /etc/bash.bashrc file by executing the following statement.

sudo gedit /etc/bash.bashrc

Scroll to the bottom of the file and add the following lines.

export JAVA_HOME=/usr/lib/jvm/java-8-oracle
export PATH=$JAVA_HOME/bin:$PATH

Save the file and close the editor. To load the changes, execute the following statement.
source /etc/bash.bashrc

To validate the changes you can execute the following statement.
echo $JAVA_HOME

The result of this statement should be the following.
/usr/lib/jvm/java-8-oracle

generate soft link for sqldeveloper.sh

sudo ln -s ~/Downloads/sqldeveloper/sqldeveloper.sh /usr/local/bin/sqldeveloper


Open file sqldeveloper.sh using gedit

$gedit sqldeveloepr.sh

#!/bin/bash
#cd "`dirname $0`"/sqldeveloper/bin && bash sqldeveloper $*

unset -v GNOME_DESKTOP_SESSION_ID
cd ~/Downloads/sqldeveloper/sqldeveloper/bin && bash sqldeveloper $*

Save

now type $sqldeveloper on command line to open SQLdeveloper

Oracle 18c SQL Developer is Installed successfully on Ubuntu 16.04 LTS 



Installing Oracle Database 11g in Ubuntu 16.04

For the installation of Oracle 11g R2 Express Edition (XE), a couple of additional Linux packages are required. These packages can be installed by executing the following statement.

sudo apt-get install alien libaio1 unixodbc

The next step is to download the Oracle 11g R2 Express Edition from the Oracle website.

cd Downloads

The next step step is to unzip the downloaded file. To do this, execute the following command.
unzip oracle-xe-11.2.0-1.0.x86_64.rpm.zip

A new directory (Disk1) is added to the Download directory. Navigate to this directory:

cd Disk1

Now we have to convert the Red Hat package (rpm) to a Debian package. This may be done using the alien command. The -d parameter is used to inform alien that a Debian package should be generated.

sudo alien --scripts -d oracle-xe-11.2.0-1.0.x86_64.rpm

The Red Hat package, relies on the /sbin/chkconfig file, which is not used in Ubuntu. To successfully install Oracle XE we use a simple trick. Start by creating a custom /sbin/chkconfig file by executing the following statement.

sudo gedit /sbin/chkconfig

Copy and paste the following into the editor:

#!/bin/bash
# Oracle 11gR2 XE installer chkconfig hack for Ubuntu
file=/etc/init.d/oracle-xe
if [[ ! `tail -n1 $file | grep INIT` ]]; then
echo >> $file
echo '### BEGIN INIT INFO' >> $file
echo '# Provides: OracleXE' >> $file
echo '# Required-Start: $remote_fs $syslog' >> $file
echo '# Required-Stop: $remote_fs $syslog' >> $file
echo '# Default-Start: 2 3 4 5' >> $file
echo '# Default-Stop: 0 1 6' >> $file
echo '# Short-Description: Oracle 11g Express Edition' >> $file
echo '### END INIT INFO' >> $file
fi
update-rc.d oracle-xe defaults 80 01
#EOF

Save the file and close the editor. Now we have to provide the file with the appropriate execution privileges.

sudo chmod 755 /sbin/chkconfig

After this, we have to create the file /etc/sysctl.d/60-oracle.conf to set the additional kernel parameters. Open the file by executing the following statement.

sudo gedit /etc/sysctl.d/60-oracle.conf

Copy and paste the following into the file. Kernel.shmmax is the maximum possible value of physical RAM in bytes. 536870912 / 1024 /1024 = 512 MB.

# Oracle 11g XE kernel parameters 
fs.file-max=6815744 
net.ipv4.ip_local_port_range=9000 65000 
kernel.sem=250 32000 100 128
kernel.shmmax=536870912

Save the file. The changes in this file may be verified by executing:

sudo cat /etc/sysctl.d/60-oracle.conf

Load the kernel parameters:

sudo service procps start

The changes may be verified again by executing:

sudo sysctl -q fs.file-max

This method should return the following:

fs.file-max = 6815744

After this, execute the following statements to make some more required changes:

sudo ln -s /usr/bin/awk /bin/awk
mkdir /var/lock/subsys
touch /var/lock/subsys/listener

Close the second terminal window and return to the first terminal window.

sudo dpkg --install oracle-xe_11.2.0-2_amd64.deb

NOTE THE PASSWORD YOU WOULD SPECIFY HERE FOR YOUR DATABASE. YOU WOULD BEED THAT TO CONNECT WHILE ACCESSING DATABASE FROM SQL DEVELOPER !

Execute the following to avoid getting a ORA-00845: MEMORY_TARGET error. Note: replace “size=4096m” with the size of your machine’s RAM in MBs.

sudo rm -rf /dev/shm
sudo mkdir /dev/shm
sudo mount -t tmpfs shmfs -o size=4096m /dev/shm

Create the file /etc/rc2.d/S01shm_load.

sudo gedit /etc/rc2.d/S01shm_load

Copy and paste the following in the file. Note: replace “size=4096m” with the size of your machine’s RAM in MBs.

#!/bin/sh
case "$1" in
start) mkdir /var/lock/subsys 2>/dev/null
touch /var/lock/subsys/listener
rm /dev/shm 2>/dev/null
mkdir /dev/shm 2>/dev/null
mount -t tmpfs shmfs -o size=4096m /dev/shm ;;
*) echo error
exit 1 ;;
esac

Save the file, close the editor and provide the appropriate execution privileges.

sudo chmod 755 /etc/rc2.d/S01shm_load


Configuring Oracle 11g R2 Express Edition

If you have successfully installed to Oracle 11g R2 Express Edition server, it’s time to configure the server. Default values are shown between brackets for each question.

sudo /etc/init.d/oracle-xe configure


Now it is time to set-up some environmental variables. Open the /etc/bash.bashrc file by executing the following statement:

sudo gedit /etc/bash.bashrc

Scroll to the bottom of the file and add the following lines.

export ORACLE_HOME=/u01/app/oracle/product/11.2.0/xe
export ORACLE_SID=XE
export NLS_LANG=`$ORACLE_HOME/bin/nls_lang.sh`
export ORACLE_BASE=/u01/app/oracle
export LD_LIBRARY_PATH=$ORACLE_HOME/lib:$LD_LIBRARY_PATH
export PATH=$ORACLE_HOME/bin:$PATH

Save the file and close the editor. To load the changes, execute the following statement:

source /etc/bash.bashrc

To validate the changes you can execute the following statement.

echo $ORACLE_HOME

This statement should result in the following output.

/u01/app/oracle/product/11.2.0/xe

After this step it is recommended to reboot the machine. After the reboot is completed, you should be able to start the Oracle server using the following command:

sudo service oracle-xe start

A file named oraclexe-gettingstarted.desktop is placed on your desktop. To make this file executable, navigate to you desktop.

cd ~/Desktop

To make the file executable, execute the following statement.

sudo chmod a+x oraclexe-gettingstarted.desktop


Now, you got your Oracle 11g Database installed in Ubuntu 16.04 with its Desktop icon also.

Next step is to open Oracle SQL Developer and connect it to Database using specified password (set during database installation).

Hope you would have understood the steps. Feel free to contact in case of any issue!
Happy Learning :-)