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Friday, April 5, 2013

Linux Distros How-to Getting-Started to Install and Manage by SqlPlus Oracle 11g R2 Database Quick Guide

This is an Easy and Step-by-Step Guide to Install the Oracle 11g R2 Database on Linux Distros and Quick Managing Instance by SQLPlus Commands

The Guide Include All Basic Details, Command and Screenshots of Fundamental Processes.

Relax and Take the Time to Reading, Understanding and Executing Carefully the Instructions Contained here.

How-to Install Oracle 11g R2 Database on Linux Distros:

Installing Oracle 11g DB on Linux

Link to Detailed and Step-by-Step Visual Guide on Installing Oracle 11g R2 Database for Linux Distros.
How-to Start and Stop All the Oracle 11g Database Components
- Start the Oracle Listener, Database and Manager
  1. Login as Oracle User
```
su oracle
```
  2. Start the Listner:
```
lsnrctl start
```
  3. Start the Database process:
```
sqlplus '/ as sysdba'
```
    Insert YourOracleAccountPassword
```
>startup
```
    Wait until the database is Up!
```
ORACLE instance started.
...
Database opened.
```
    Exit from sqlplus
```
>exit
```
  4. Start Database Manager Console
```
emctl start dbconsole
```
  5. Access the Oracle Database Manager on Browser
```
https://127.0.0.1:1158/em
```
- Stop the Oracle Database
  1. Stop the Database process:
```
sqlplus '/ as sysdba'
```
```
>shutdown immediate
```
```
>exit
```
  2. Stop the Listner:
```
lsnrctl stop
```
If you have Multiple Oracle Databases Before to Start a New one you have to Set the Database SID:
```
export ORACLE_SID=<dbSID>
```
After you Should Access the "Enterprise Manager" on Browser by the URL shown on the Last Screen.
On a Localhost for Example you Should Access the Enterprise Manager by the Address:
```
https://127.0.0.1:1158/em
```
And you can Login with:
User Name: SYS
Password: oracleDatabasePassword
From the Drop-down below Select >> Connect as SYSDBA
You Should be Able to Access the Database by the Enterprise Manager!