Embark on a transformative journey into the realm of database administration with this complete information to putting in Oracle 19c. This strong database answer 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 knowledge, this step-by-step roadmap will information you thru the nuances of putting in Oracle 19c, making certain a seamless and environment friendly course of.
Not like its predecessors, Oracle 19c boasts a plethora of progressive options that improve efficiency, safety, and manageability. Its self-driving capabilities, powered by machine studying algorithms, automate mundane duties, liberating up IT sources for extra strategic initiatives. Moreover, Oracle 19c introduces enhanced encryption protocols, offering an impenetrable layer of safety in your delicate knowledge. Because of this, organizations can leverage the complete potential of their knowledge property with confidence and peace of thoughts.
Moreover, Oracle 19c seamlessly integrates with cloud platforms, enabling organizations to leverage the scalability and suppleness of the cloud to fulfill their evolving enterprise wants. This hybrid method supplies the perfect of each worlds, permitting companies to optimize their infrastructure and scale 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 development and innovation.
Stipulations 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 |
|---|---|
| Crimson 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 Area: 100 GB of obtainable disk house
- 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, observe the supplied pointers:
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, sign up together 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 in your working system.
4. Fastidiously evaluation 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 Programs:
| Working System | Structure |
|---|---|
| Crimson 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 might be put in.
Creating the Oracle Person
To create the oracle consumer, use the next command as the basis 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 basis 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 basis 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 Automated Storage Administration) |
Granting Privileges to the oinstall Group
| Command | Description |
|---|---|
| chgrp oinstall /choose/oracle | Adjustments 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 must 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: Enable 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 enable 1521/tcp
“`
You may also specify a distinct port when you have modified the default port through the database set up.
Step 3: Enable Entry to Your Native Machine
To permit entry to your native machine, run the next command:
“`bash
sudo ufw enable from 127.0.0.1 to any port 1521
“`
This command will enable all site visitors out of your native machine to port 1521, whatever the IP deal with.
Step 4: Enable Entry from Particular IP Addresses (Elective)
If you wish to enable entry to the database from particular IP addresses, you’ll be able to add them to the firewall guidelines. Run the next command for every IP deal with you need to enable:
“`bash
sudo ufw enable from
“`
For instance, to permit entry from the IP deal with 192.168.1.100, you’d run the next command:
“`bash
sudo ufw enable from 192.168.1.100 to any port 1521
“`
You may also use CIDR notation to permit entry from a variety of IP addresses. For instance, to permit entry from the IP deal with vary 192.168.1.0/24, you’d run the next command:
“`bash
sudo ufw enable from 192.168.1.0/24 to any port 1521
“`
Putting in the Oracle 19c Software program
To put in Oracle 19c, you’ll need to observe these steps:
- Obtain the Oracle 19c software program from the Oracle web site.
- Extract the contents of the downloaded file to a short lived 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’ll be able to confirm the set up by following these steps:
- Open a command immediate.
- Kind 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, observe 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.
Should you encounter any issues through the set up course of, you’ll be able to confer with 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 short lived 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 entails configuring varied parameters and settings. Here is an in depth breakdown of every step:
1. Verify 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 house, and community connectivity.
2. Set up Stipulations
Set up the mandatory conditions, together with the Grid Infrastructure (GI) Residence and the Oracle Prompt Consumer.
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 Residence
Configure the Grid Infrastructure Residence 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 deal with of the server |
| GNS_CLUSTER_NAME | Cluster identify (if relevant) |
6. Create Database Occasion
Use the DBCA to create the Oracle database occasion. Specify the next parameters:
After you have entered all of the parameters, evaluation and submit the response file to create the database occasion.
Configuring Community Connectivity
Establishing correct community connectivity between the consumer 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 identify to the precise host and port of the database server. To configure community aliases, edit the tnsnames.ora file situated within the $ORACLE_HOME/community/admin listing.
For example, if the database server’s hostname is mydatabase and the port is 1521, you’ll be able to 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 identify. |
| 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. Here 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 begin the occasion, run the next command:
“`
$ sqlplus / as sysdba
“`
“`
SQL> startup
“`
3. Hook up with the database
Now that the listener and database occasion are operating, you’ll be able to hook up with the database utilizing a SQL consumer device corresponding to 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’ll be able to confirm the connection by operating the next command:
“`
SQL> choose * from v$model;
“`
5. Create a consumer
So as to work together with the database, you must create a consumer. To create a consumer, run the next command:
“`
SQL> create consumer username recognized by password;
“`
6. Grant privileges
After you have created a consumer, you must grant the consumer the suitable privileges to entry the database. To grant privileges, run the next command:
“`
SQL> grant join, useful resource to username;
“`
7. Create a database
To create a database, run the next command:
“`
SQL> create database databasename;
“`
8. Hook up with the brand new database
To hook up with the brand new database, run the next command:
“`
SQL> join username/password@hostname:port/databasename
“`
9. Confirm the database connection
As soon as you might be linked to the brand new database, you’ll be able to confirm the connection by operating the next command:
“`
SQL> choose * from v$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 required 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 required identify. |
To grant a task to a consumer, use the next syntax:
| Command | Description |
|---|---|
| GRANT rolename TO username; | Grants the required function to the required consumer. |
Revoking Person Privileges
To revoke privileges from a consumer, use the next syntax:
| Command | Description | ||||||||
|---|---|---|---|---|---|---|---|---|---|
REVOKE | Revokes the required privilege from the required consumer. |
Dropping Customers and RolesTo drop a consumer, use the next syntax:
To drop a task, use the next syntax:
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