Setup Oracle on RedHat

Prerequisite-
Oracle11gR2 setup

If your trying on server, you probably have no internet connection. So, to download the packages needed for oracle, you may need to use your .iso file like this

Steps-

     1.      Installing Dependencies
To install dependencies, run

Yum update

yum install binutils-2*

yum install compat-libstdc++-33*

yum install compat-libstdc++-33*i386*

yum install elfutils-libelf-0*

yum install elfutils-libelf-devel-0*

yum install gcc-4*

yum install gcc-c++-4*

yum install glibc-2*

yum install glibc-2*i686*

yum install glibc-common-2*

yum install glibc-devel-2*

yum install glibc-devel-2*i386*

yum install glibc-headers-2*

yum install ksh-20*

yum install libaio-0*

yum install libaio-0*i386*

yum install libaio-devel-0*

yum install libaio-devel-0*i386*

yum install libgcc-4*

yum install libgcc-4*i386*

yum install libstdc++-4*

yum install libstdc++-4*i386*

yum install libstdc++-devel-4*

yum install make-3*

yum install numactl-devel-0*

yum install sysstat-7*

yum install unixODBC-2*

yum install unixODBC-2*i386*

yum install unixODBC-devel-2*

yum install unixODBC-devel-2*i386*

       2.      We need to create some softlinks to start the installation. To do so run the following commands,

sudo ln -sf /bin/bash /bin/sh

sudo ln -s /usr/bin/awk /bin/awk

sudo ln -s /usr/bin/rpm /bin/rpm

sudo ln -s /usr/bin/basename /bin/basename

sudo ln -s /usr/lib/i386-linux-gnu/libpthread_nonshared.a /usr/lib/libpthread_nonshared.a

sudo ln -s /usr/lib/i386-linux-gnu/libc_nonshared.a /usr/lib/libc_nonshared.a

sudo ln -s /lib/i386-linux-gnu/libgcc_s.so.1 /lib/libgcc_s.so.1

sudo ln -s /usr/lib/i386-linux-gnu/libstdc++.so.6 /usr/lib/libstdc++.so.6

       3.      Also we need to add oracle user and oinstall, dba, nobody group. Run following commands,

     /usr/sbin/groupadd oinstall

        /usr/sbin/groupadd dba

        /usr/sbin/groupadd nobody

        /usr/sbin/usermod -g nobody nobody

  /usr/sbin/ useradd -g oinstall -G dba -p password -d /home/oracle -s /bin/bash oracle

sudo mkdir /home/oracle

sudo chown -R oracle:dba /home/oracle

        4.      We need to do changes in start-up script, run following commands as root

mkdir /etc/rc.d

for i in 0 1 2 3 4 5 6 S

do ln -s /etc/rc$i.d /etc/rc.d/rc$i.d

done

        5.      Now we will create the directory for installation, and changes it owner to oracle. Run following commands to do the same

mkdir -p /u01/app/oracle/product/11.2.0/dbhome_1

chown -R oracle:oinstall /u01

chmod -R 0775 /u01

6.      Open /etc/security/limits.conf and add these lines.

oracle           soft    nproc   2047

oracle           hard    nproc   16384

oracle           soft    nofile  1024

oracle           hard    nofile  65536

Where "nproc" is the maximum number of processes available to the user and "nofiles" is the number of open file descriptors.

7.      Open /etc/pam.d/login and add the following line if it is already not there.

session    required     pam_limits.so

8.      Disable secure linux by editing the /etc/selinux/config file, making sure the SELINUX flag is set as follows:

SELINUX=disabled

If you leave SELINUX=enforcing then you may get an error later while starting sqlplus:
sqlplus: error while loading shared libraries:
/usr/lib/oracle/default/client64/lib/libclntsh.so.11.1: cannot restore segment
prot after reloc: Permission denied

9.      Allow the user oracle to use X server

     Vi /etc/gdm/custom.conf

Add entry to the existing categories:

[xdmcp] Enable=true

10.   Now switch to the user oracle.

# su - oracle

$ echo $SHELL

/bin/bash

11.  If the returned shell is bash then open ~/.bash_profile and add these lines:

# Oracle settings

TMP=/tmp; export TMP

TMPDIR=$TMP; export TMPDIR

# If /tmp doesn't have 1G space free then you can workaround it by

# pointing the variables TMP AND TMPDIR to a location where you have 

# sufficient space.

ORACLE_BASE=/u01/app/oracle; export ORACLE_BASE

ORACLE_HOME=$ORACLE_BASE/product/11.2.0/dbhome_1; export ORACLE_HOME

ORACLE_SID=novapay; export ORACLE_SID

PATH=$ORACLE_HOME/bin:/usr/sbin:$PATH; export PATH

LD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/lib;

export LD_LIBRARY_PATH

CLASSPATH=$ORACLE_HOME/JRE:$ORACLE_HOME/jlib:$ORACLE_HOME/rdbms/jlib;

export CLASSPATH

if [ $USER = "oracle" ]; then

   if [ $SHELL = "/bin/ksh" ]; then

     ulimit -p 16384

     ulimit -n 65536

   else

     ulimit -u 16384 -n 65536

   fi

fi

umask 022

      12.  Download Oracle 11g R2 database from Oracle Download Center for linux.

I have downloaded both the zip in /home/oracle. We need to extract both the zip to start the installation. To unzip run,

cd /home/oracle

unzip linux_11gR2_database_1of2.zip

unzip linux_11gR2_database_2of2.zip

      13.  Go to the binaries and start the installation as a oracle user,

cd /home/oracle

chmod 777 -R database

cd database

./runInstaller

      14.  Next we go though the installation (I don’t have the “Oracle Support Password” so just skip in here):

In Selection Installation Option, choose Create and configure a database:

In System Class, choose Server Class (we hope to give a full control during installation):

In Node Selection, choose Single instance database installation:

In Select Install Type, choose Advanced install:

In Select Product Languages, I choose to install English language:

In Select Database Edition, I choose Enterprise Edition:

In Specify Installation Location, it should default as below:

Oracle Base: /u02/oradata/oracle

Sofeware Location: /u02/oradata/oracle/product/11.2.0/dbhome_1

      15.  In Create Inventory, it should default as below:

Inventory Directory: /u02/app/oraInventory

oraInventory Group Name: oinstall

      16.  In Select Configure Type, choose General Purpose / Transaction Processing:

(IMPORTANT!) In Specify Database Identifiers, configure as below:

Global database name: orcl.me.com

Oracle Service Identifier (SID): orcl

      17.  In Specify Configuration Options, configure as below:

Memory -> Enable Automatic Memory Management: TRUE

Character sets: Use Unicode (AL32UTF8)

      18.  In Specify Management Options, choose Use Database Control for database management but keep other else empty:

In Specify Database Storage Options, choose File System where:

Specify database file location: /u02/oradata/oracle/oradata

In Specify Recovery Options, choose Do not enable automated backups:

In Specify Schema Passwords, I am a bit lazy so choose Use the same password for all accounts (don’t do this in production server!):

In Privileged Operating System Groups, confirm as below:

Database Administrator (OSDBA) Group: dba

Database Operator (OSOPER) Group: oinstall

       19.   In Preform Prerequisite Checks, just simply ignore all warning message (since we are using Debian but not Oracle officially supported OS):

         20.   Then press Continue and keep going …
         21.     Now following the instructions and run the following commands with root user:

/u01/app/oraInventory/orainstRoot.sh
/u01/app/oracle/product/11.2.0/dbhome_1/root.sh

22.     Confirm with installation progress

23.     In previous screen the installer mentioned that we can access Enterprise Manager Database Control URL

from https://localhost.localdomain:1158/em, so now let’s open the browser and test it with following account:

User Name: SYS
Password: your_secret_password
Connect As: SYSDBA

24.     login as oracle user root@ubs-desktop:~# su – oracle
25.     startup lsnrctl
26. oracle@ubs-desktop:~$ lsnrctl start
27.     startup database 
28. oracle@ubs-desktop:~$ sqlplus sys as sysdba

SQL> startup;

SQL> alter user scott identified by tiger;

SQL> alter user scott account unlock;

SQL> exit

Running a stored procedure Liferay

Here myreload() is the stored procedure:-

1. my-portlet\src\main\resources\custom-sql\reload_data.xml

<?xml version="1.0" encoding="UTF-8"?>
<custom-sql>
<sql id="com.me.service.persistence.MyFinder.reloadStaging">
<![CDATA[
select myreload();
]]>
</sql>
</custom-sql>

2. Create MyFinderImpl.java

package com.me.service.persistence;

import com.liferay.portal.kernel.dao.orm.Dialect;

import com.liferay.portal.kernel.dao.orm.QueryUtil;

import com.liferay.portal.kernel.dao.orm.SQLQuery;

import com.liferay.portal.kernel.dao.orm.Session;

import com.liferay.portal.kernel.dao.orm.Type;

import com.liferay.portal.kernel.exception.SystemException;

import com.liferay.portal.service.persistence.impl.BasePersistenceImpl;

import com.liferay.util.dao.orm.CustomSQLUtil;

public class MyFinderImpl extends BasePersistenceImpl implements MyFinder {

public static String RELOAD_STAGING = MyFinder.class.getName()+".reloadStaging";

    public void reloadStaging()

            throws SystemException {

        // open a new hibernate session in normal case when you are opening

        // session for same entity

        Session session = null;

        SQLQuery query = null;

        try {

            session = openSession();

            String sql = CustomSQLUtil.get(RELOAD_STAGING);

            System.out.println("sql: "+sql);

            // create a SQLQuery object

            System.out.println("dialect: "+getDialect());

            query = session.createSQLQuery(sql);

            query.setCacheable(false);

            

            query.addScalar("myreload", Type.TEXT);

           //This is used when you want to pass any value to the query and place "?" in the query where you want the value to be set

           QueryUtil.list(query, getDialect(), -1, -1);

           

        } catch (Exception e) {

            System.out.println("Exception : Finder custom");

            e.printStackTrace();

        } finally {

            closeSession(session);

        }

        // execute the query and return a list from the db

        //return (Object) query.list().get(0);

    }

}

3. Add the following code to MyLocalServiceImpl.java

public void reloadStagingData() throws SystemException {

         TerminalTrackFinderUtil.reloadStaging();

    }

You can run it like any other LocalServiceImpl in your code