Embark on a transformative journey into the realm of database administration with this complete information to putting in Oracle 19c. This sturdy database resolution empowers organizations with the scalability, reliability, and safety they should navigate the ever-evolving technological panorama. Whether or not you are a seasoned IT skilled or simply beginning your journey on this planet of information, this step-by-step roadmap will information you thru the nuances of putting in Oracle 19c, guaranteeing a seamless and environment friendly course of.
Not like its predecessors, Oracle 19c boasts a plethora of modern options that improve efficiency, safety, and manageability. Its self-driving capabilities, powered by machine studying algorithms, automate mundane duties, releasing up IT sources for extra strategic initiatives. Moreover, Oracle 19c introduces enhanced encryption protocols, offering an impenetrable layer of safety to your delicate knowledge. Because of this, organizations can leverage the total potential of their knowledge belongings with confidence and peace of thoughts.
Moreover, Oracle 19c seamlessly integrates with cloud platforms, enabling organizations to leverage the scalability and adaptability of the cloud to satisfy their evolving enterprise wants. This hybrid method gives the most effective of each worlds, permitting companies to optimize their infrastructure and cut back prices whereas sustaining the efficiency and safety of their on-premises techniques. By embracing Oracle 19c, organizations unlock a world of potentialities, empowering them to make data-driven choices that drive enterprise progress and innovation.
Conditions for Oracle 19c Set up
Working System Necessities
Oracle 19c requires a suitable working system (OS). The supported OS variations and their respective necessities are as follows:
Supported OS Variations:
| OS | Model |
|---|---|
| Pink Hat Enterprise Linux | 8.4, 8.5 |
| Oracle Linux | 8.4, 8.5 |
| CentOS | 8.4 |
| SUSE Linux Enterprise Server | 15 SP2 |
{Hardware} Necessities
The minimal {hardware} necessities for Oracle 19c set up are as follows:
- Processor: 2 CPUs
- Reminiscence: 8 GB RAM
- Disk House: 100 GB of obtainable disk area
- Community: Gigabit Ethernet
Software program Necessities
The next software program parts are required for Oracle 19c set up:
- Java Runtime Atmosphere (JRE) 1.8 or later
- Perl 5.16 or later
- make utility
- GNU C Compiler (GCC) 5.4 or later
- X Window System (X11) libraries
Downloading the Oracle 19c Software program
As a preparatory step, you may have to acquire the Oracle 19c software program earlier than initiating the set up course of. To take action, comply with the offered tips:
Oracle Software program Get Began Web page
1. Navigate to the official Oracle web site: https://www.oracle.com/database/technologies/oracle-database-software-downloads.html.
2. Find the Oracle Database 19c part and click on on the “Get Began” button.
Creating an Oracle Account
1. If you do not have an Oracle account, you may have to create one by clicking on the “Create an account” hyperlink.
2. As soon as you have accomplished the account creation course of, check in along with your new credentials.
Downloading the Oracle 19c Software program
1. On the Get Began web page, choose the tab for “Downloads”.
2. Find the “Oracle Database 19c” part and click on on the “Obtain” button.
3. Select the suitable platform and language to your working system.
4. Rigorously assessment the phrases and situations earlier than clicking on “Settle for and Obtain”.
5. As soon as the obtain is full, extract the downloaded file to a handy location in your system.
Supported Working Techniques:
| Working System | Structure |
|---|---|
| Pink Hat Enterprise Linux | x86-64 (64-bit) |
| Oracle Linux | x86-64 (64-bit) |
| Microsoft Home windows Server | x64 (64-bit) |
Creating the Oracle Database Person and Group
Oracle’s database parts, such because the Oracle Database, Listener, and Enterprise Supervisor, are managed by an oracle consumer and group. These customers and teams should be created on the system earlier than the Oracle software program may be put in.
Creating the Oracle Person
To create the oracle consumer, use the next command as the foundation consumer:
useradd -m -g oinstall oracle
This command creates the oracle consumer and assigns it the first group oinstall.
Creating the Oracle Group
To create the oinstall group, use the next command as the foundation consumer:
groupadd oinstall
This command creates the oinstall group.
Granting Privileges to the Oracle Person and Group
The oracle consumer and oinstall group should be granted particular privileges to carry out database operations. Use the next instructions as the foundation consumer to grant these privileges:
Granting Privileges to the oracle Person
| Command | Description |
|---|---|
| usermod -aG oinstall oracle | Provides the oracle consumer to the oinstall group |
| usermod -aG dba oracle | Provides the oracle consumer to the dba group (for database administration) |
| usermod -aG asmdba oracle | Provides the oracle consumer to the asmdba group (for Computerized Storage Administration) |
Granting Privileges to the oinstall Group
| Command | Description |
|---|---|
| chgrp oinstall /choose/oracle | Modifications the group possession of the /choose/oracle listing to oinstall |
| chmod 775 /choose/oracle | Units the permissions on the /choose/oracle listing to permit the oinstall group to learn, write, and execute |
Configuring the Database Firewall
The database firewall limits entry to the database by untrusted networks and customers. Earlier than creating the database, you’ll want to configure the firewall to permit entry out of your native machine.
Step 1: Allow the Firewall
Open a terminal window and run the next command:
“`bash
sudo ufw allow
“`
This command will allow the firewall.
Step 2: Permit Entry to the Database Port
By default, Oracle runs on port 1521. To permit entry to this port, run the next command:
“`bash
sudo ufw permit 1521/tcp
“`
You may also specify a unique port you probably have modified the default port in the course of the database set up.
Step 3: Permit Entry to Your Native Machine
To permit entry to your native machine, run the next command:
“`bash
sudo ufw permit from 127.0.0.1 to any port 1521
“`
This command will permit all visitors out of your native machine to port 1521, whatever the IP tackle.
Step 4: Permit Entry from Particular IP Addresses (Optionally available)
If you wish to permit entry to the database from particular IP addresses, you possibly can add them to the firewall guidelines. Run the next command for every IP tackle you wish to permit:
“`bash
sudo ufw permit from
“`
For instance, to permit entry from the IP tackle 192.168.1.100, you’ll run the next command:
“`bash
sudo ufw permit from 192.168.1.100 to any port 1521
“`
You may also use CIDR notation to permit entry from a spread of IP addresses. For instance, to permit entry from the IP tackle vary 192.168.1.0/24, you’ll run the next command:
“`bash
sudo ufw permit from 192.168.1.0/24 to any port 1521
“`
Putting in the Oracle 19c Software program
To put in Oracle 19c, you will want to comply with these steps:
- Obtain the Oracle 19c software program from the Oracle web site.
- Extract the contents of the downloaded file to a brief listing.
- Run the Oracle Common Installer (OUI) program.
- Observe the prompts within the OUI to put in Oracle 19c.
5. Verifying the Set up
As soon as Oracle 19c has been put in, you possibly can confirm the set up by following these steps:
- Open a command immediate.
- Sort the next command:
sqlplus /nolog
- If the SQL*Plus immediate is displayed, then Oracle 19c has been efficiently put in.
You may also confirm the set up by checking the Oracle Database Configuration Assistant (DBCA). To do that, comply with these steps:
- Click on on the Begin menu.
- Choose Oracle Database Configuration Assistant.
- The DBCA will open. If the DBCA opens, then Oracle 19c has been efficiently put in.
If you happen to encounter any issues in the course of the set up course of, you possibly can seek advice from the Oracle documentation for help.
| Step | Description |
|---|---|
| 1 | Obtain the Oracle 19c software program from the Oracle web site. |
| 2 | Extract the contents of the downloaded file to a brief listing. |
| 3 | Run the Oracle Common Installer (OUI) program. |
| 4 | Observe the prompts within the OUI to put in Oracle 19c. |
| 5 | Confirm the set up by checking the SQL*Plus immediate or the DBCA. |
Creating the Oracle Database Occasion
Creating the Oracle database occasion is a multi-step course of that includes configuring varied parameters and settings. This is an in depth breakdown of every step:
1. Test System Necessities
Guarantee your system meets the minimal {hardware} and software program necessities for Oracle 19c. Confirm the compatibility of your working system, RAM, disk area, and community connectivity.
2. Set up Conditions
Set up the required stipulations, together with the Grid Infrastructure (GI) Dwelling and the Oracle Immediate Shopper.
3. Create Oracle Person
Create a devoted Oracle consumer with administrative privileges.
4. Set Atmosphere Variables
Configure the ORACLE_BASE and ORACLE_HOME surroundings variables to level to the set up directories.
5. Configure GI Dwelling
Configure the Grid Infrastructure Dwelling by making a database configuration assistant (DBCA) response file and operating the DBCA to create the GI.
| Parameter | Worth |
|---|---|
| GNS_HOST_NAME | Hostname of the server |
| GNS_IP_ADDRESSES | IP tackle of the server |
| GNS_CLUSTER_NAME | Cluster title (if relevant) |
6. Create Database Occasion
Use the DBCA to create the Oracle database occasion. Specify the next parameters:
After getting entered all of the parameters, assessment and submit the response file to create the database occasion.
Configuring Community Connectivity
Establishing correct community connectivity between the shopper and the Oracle database server is essential for profitable communication. Observe these steps to configure community connectivity:
7. Configure Community Aliases
Community aliases are used to simplify the connection course of by mapping a logical title to the precise host and port of the database server. To configure community aliases, edit the tnsnames.ora file positioned within the $ORACLE_HOME/community/admin listing.
As an illustration, if the database server’s hostname is mydatabase and the port is 1521, you possibly can create an alias named myalias as follows:
| myalias = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = mydatabase)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = ORCL) ) ) |
| Column | Description |
|---|---|
| INSTANCE_NUMBER | The occasion quantity. |
| INSTANCE_NAME | The occasion title. |
| STATUS | The standing of the occasion. |
| STARTUP_TIME | The time when the occasion was began. |
| SHUTDOWN_TIME | The time when the occasion was shut down. |
Connecting to the Oracle 19c Database
After Oracle 19c has been efficiently put in, you can begin connecting to the database. This is how:
1. Create a listener
A listener is a course of that listens for incoming connection requests and directs them to the suitable database occasion. To create a listener, run the next command:
“`
$ lsnrctl begin
“`
2. Begin the database occasion
The database occasion is the precise operating database. To start out the occasion, run the next command:
“`
$ sqlplus / as sysdba
“`
“`
SQL> startup
“`
3. Connect with the database
Now that the listener and database occasion are operating, you possibly can connect with the database utilizing a SQL shopper instrument reminiscent of SQL*Plus. To attach, run the next command:
“`
$ sqlplus username/password@hostname:port/servicename
“`
4. Confirm the connection
As soon as you might be linked to the database, you possibly can confirm the connection by operating the next command:
“`
SQL> choose * from v$model;
“`
5. Create a consumer
With a view to work together with the database, you’ll want to create a consumer. To create a consumer, run the next command:
“`
SQL> create consumer username recognized by password;
“`
6. Grant privileges
After getting created a consumer, you’ll want to grant the consumer the suitable privileges to entry the database. To grant privileges, run the next command:
“`
SQL> grant join, useful resource to username;
“`
7. Create a database
To create a database, run the next command:
“`
SQL> create database databasename;
“`
8. Connect with the brand new database
To connect with the brand new database, run the next command:
“`
SQL> join username/password@hostname:port/databasename
“`
9. Confirm the database connection
As soon as you might be linked to the brand new database, you possibly can confirm the connection by operating the next command:
“`
SQL> choose * from v$database;
“`
10. Use the database
Now that you’re linked to the brand new database, you can begin utilizing it to create tables, insert knowledge, and carry out queries.
Managing the Oracle 19c Database
10. Managing Oracle Customers and Roles
Creating and Managing Customers
Customers are created to grant entry to the database. To create a consumer, use the next syntax:
| Command | Description |
|---|---|
| CREATE USER username IDENTIFIED BY password; | Creates a consumer with the desired username and password. |
Managing Roles
Roles are used to group customers and grant them permissions collectively. To create a task, use the next syntax:
| Command | Description |
|---|---|
| CREATE ROLE rolename; | Creates a task with the desired title. |
To grant a task to a consumer, use the next syntax:
| Command | Description |
|---|---|
| GRANT rolename TO username; | Grants the desired function to the desired consumer. |
Revoking Person Privileges
To revoke privileges from a consumer, use the next syntax:
| Command | Description | ||||||||
|---|---|---|---|---|---|---|---|---|---|
REVOKE | Revokes the desired privilege from the desired consumer. |
Dropping Customers and RolesTo drop a consumer, use the next syntax:
To drop a task, use the next syntax:
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