Install with APT¶

Use the Percona repositories to install using APT.

Prerequisits¶

Either use sudo or run as root
Stable Internet access

Installation steps¶

The examles of the “expected output” depend on the operating system. The following examples are based on Ubuntu 22.04.

Update the package index.

$ sudo apt update

The result depends on the operating system. The following result is based on Ubuntu 22.04:

Expected output

```{.text .no-copy}
Hit:1 http://us.archive.ubuntu.com/ubuntu jammy InRelease
Get:2 http://us.archive.ubuntu.com/ubuntu jammy-updates InRelease [119 kB]
Hit:3 http://us.archive.ubuntu.com/ubuntu jammy-backports InRelease
...
```

Install curl.

$ sudo apt install -y curl

The result depends on the operating system. The following result is based on Ubuntu 22.04:

Expected output

Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
...

Download the percona-release repository package:

$ curl -O https://repo.percona.com/apt/percona-release_latest.generic_all.deb

You should see the following result:

Expected output

% Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                Dload  Upload   Total   Spent    Left  Speed
100 11804  100 11804    0     0  17375      0 --:--:-- --:--:-- --:--:-- 17358

...

Install the downloaded package and any dependencies:

$ sudo apt install -y gnupg2 lsb-release ./percona-release_latest.generic_all.deb

You should see the following result:

Expected output

Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Note, selecting 'percona-release' instead of './percona-release_latest.generic_all.deb'
lsb-release is already the newest version (11.1.0ubuntu4).
lsb-release set to manually installed.
...

Update the package listing.

$ sudo apt update

The result depends on the operating system. The following result is based on Ubuntu 22.04:

Expected output

Hit:1 http://us.archive.ubuntu.com/ubuntu jammy InRelease
Get:2 http://repo.percona.com/percona/apt jammy InRelease [15.7 kB]
Hit:3 http://us.archive.ubuntu.com/ubuntu jammy-updates InRelease
Hit:4 http://us.archive.ubuntu.com/ubuntu jammy-backports InRelease
...

Set up the Percona Server for MySQL 8.0 repository:

$ sudo percona-release setup ps80

The result depends on the operating system. The following result is based on Ubuntu 22.04:

Expected output

* Disabling all Percona Repositories
* Enabling the Percona Server 8.0 repository
* Enabling the Percona Tools repository
Hit:1 http://us.archive.ubuntu.com/ubuntu jammy InRelease
Hit:2 http://us.archive.ubuntu.com/ubuntu jammy-updates InRelease
Hit:3 http://repo.percona.com/prel/apt jammy InRelease
...

Enable the Percona Server for MySQL release.

$ sudo percona-release enable ps-80 release

You should see the following result:

Expected output

* Enabling the Percona Server 8.0 repository
<*> All done!
==> Please run "apt-get update" to apply changes

Update the package listing.

$ sudo apt update

The result depends on the operating system. The following result is based on Ubuntu 22.04:

Expected output

Hit:1 http://us.archive.ubuntu.com/ubuntu jammy InRelease
Get:2 http://repo.percona.com/percona/apt jammy InRelease [15.7 kB]
Hit:3 http://us.archive.ubuntu.com/ubuntu jammy-updates InRelease
Hit:4 http://us.archive.ubuntu.com/ubuntu jammy-backports InRelease
...

Install Percona Server for MySQL 8.0.

$ sudo apt install -y percona-server-server

The result depends on the operating system. The following result is based on Ubuntu 22.04:

Expected output

Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
The following additional packages will be installed:
debsums libaio1 libdpkg-perl libfile-fcntllock-perl libfile-fnmatch-perl libmecab2
percona-server-client percona-server-common
Suggested packages:
debian-keyring gcc | c-compiler binutils git bzr
The following NEW packages will be installed:
debsums libaio1 libdpkg-perl libfile-fcntllock-perl libfile-fnmatch-perl libmecab2
percona-server-client percona-server-common percona-server-server
0 upgraded, 9 newly installed, 0 to remove and 161 not upgraded.
Need to get 172 MB of archives.
After this operation, 612 MB of additional disk space will be used.
...

The installation asks you to enter a password. We use ‘secret’ for these examples, but you can use any password, but you must remember to use your password for the rest of the Quickstart.
Confirm your password.
Choose the type of authentication, based on the compatibility and the security requirements of your applications.

The Strong password encryption uses a more secure hashing algorithm to store and verify passwords, which makes it harder for attackers to crack them.

The Legacy authentication method uses the older and less secure hashing algorithm that was used in previous versions of MySQL.

[Optional] You can increase the security of MySQL by runningsudo mysql_secure installation.

After installing MySQL, you should run the mysql_secure_installation script to improve the security of your database server. This script helps you perform several important tasks, such as:

Set a password for the root user
Select a level for the password validation policy
Remove anonymous users
Disable root login remotely
Remove the test database
Reload the privilege table to ensure all changes take effect immediately

By running this script, you can prevent unauthorized access to your server and protect your data from potential threats.

$ sudo mysql_secure_installation

Expected output

Securing the MySQL server deployment.

Enter password for user root:

VALIDATE PASSWORD COMPONENT can be used to test passwords
and improve security. It checks the strength of password
and allows the users to set only those passwords which are
secure enough. Would you like to setup VALIDATE PASSWORD component?

Press y|Y for Yes, any other key for No:

There are three levels of password validation policy:

LOW    Length >= 8
MEDIUM Length >= 8, numeric, mixed case, and special characters
STRONG Length >= 8, numeric, mixed case, special characters and dictionary                  file

Please enter 0 = LOW, 1 = MEDIUM and 2 = STRONG: 1
Using existing password for root.

Estimated strength of the password: 0
Change the password for root ? ((Press y|Y for Yes, any other key for No) :

New password:

Re-enter new password:

Estimated strength of the password: 100
Do you wish to continue with the password provided?(Press y|Y for Yes, any other key for No) :
By default, a MySQL installation has an anonymous user,
allowing anyone to log into MySQL without having to have
a user account created for them. This is intended only for
testing, and to make the installation go a bit smoother.
You should remove them before moving into a production
environment.

Remove anonymous users? (Press y|Y for Yes, any other key for No) :
Success.

Normally, root should only be allowed to connect from
'localhost'. This ensures that someone cannot guess at
the root password from the network.

Disallow root login remotely? (Press y|Y for Yes, any other key for No) :
Success.

By default, MySQL comes with a database named 'test' that
anyone can access. This is also intended only for testing,
and should be removed before moving into a production
environment.

Remove test database and access to it? (Press y|Y for Yes, any other key for No) :
- Dropping test database...
Success.

- Removing privileges on test database...
Success.

Reloading the privilege tables will ensure that all changes
made so far will take effect immediately.

Reload privilege tables now? (Press y|Y for Yes, any other key for No) :
Success.

All done!

When the installation completes, check the service status.

$ sudo systemctl status mysql

Expected output

● mysql.service - Percona Server
     Loaded: loaded (/lib/systemd/system/mysql.service; enabled; vendor preset: enabled)
     Active: active (running) since Fri 2024-02-16 10:24:58 UTC; 3min 7s ago
    Process: 4456 ExecStartPre=/usr/share/mysql/mysql-systemd-start pre (code=exited, status=0/SUCCESS)
   Main PID: 4501 (mysqld)
     Status: "Server is operational"
      Tasks: 39 (limit: 2219)
     Memory: 371.7M
        CPU: 11.800s
     CGroup: /system.slice/mysql.service
             └─4501 /usr/sbin/mysqld

Feb 16 10:24:56 vagrant systemd[1]: Starting Percona Server...
Feb 16 10:24:58 vagrant systemd[1]: Started Percona Server.

If needed, restart the service

$ sudo systemctl status mysql

Log in to the server. Use the password that you entered during the installation process, which could be secretorwhatever password you have selected. You do not see the characters in the password as you type.

$ mysql -uroot -p
Enter password:

Expected output

Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 8.0.40 Percona Server (GPL), Release '27', Revision '2f8eeab2'$

Copyright (c) 2009-2024 Percona LLC and/or its affiliates
Copyright (c) 2000, 2024, Oracle and/or its affiliates.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql>

Create a database¶

Benefits and what to watch out for when creating databases and tables

Creating a database and table has the following benefits:

Store and organize your data in a structured and consistent way.
Query and manipulate your data using SQL.
Enforce data integrity and security using constraints, triggers, views, roles, and permissions.
Optimize your data access and performance using indexes, partitions, caching, and other techniques.

When you create a table, design your database schema carefully, changing it later may be difficult and costly. You should experiment with concurrency, transactions, locking, isolation, and other issues that may arise when multiple users access the same data. You must backup and restore your data regularly, as data loss or corruption may occur due to hardware failures, human errors, or malicious attacks.

To create a database, use the CREATE DATABASE statement. You can optionally specify the character set and collation for the database in the statement. After the database is created, select the database using the USE statement or the -D option in the MySQL client.

mysql> CREATE DATABASE mydb;

Expected output

Query OK, 1 row affected (0.01 sec)

mysql> use mydb;

Expected output

Database changed

Create a table¶

Create a table using the CREATE TABLE statement. You can specify the values for each column or use the DEFAULT keyword for columns with default values, data types, constraints, indexes, and other options.

mysql> CREATE TABLE `employees` (
    `id` mediumint(8) unsigned NOT NULL auto_increment,
    `name` varchar(255) default NULL,
    `email` varchar(255) default NULL,
    `country` varchar(100) default NULL,
    PRIMARY KEY (`id`)
) AUTO_INCREMENT=1;

Expected output

Query OK, 0 rows affected, 1 warning (0.03 sec)

Insert data into the table¶

Insert data into the table using the INSERT INTO SQL statement. This statement adds multiple records into a table in one statement.

mysql> INSERT INTO `employees` (`name`,`email`,`country`)
VALUES
    ("Erasmus Richardson","posuere.cubilia.curae@outlook.net","England"),
    ("Jenna French","rhoncus.donec@hotmail.couk","Canada"),
    ("Alfred Dejesus","interdum@aol.org","Austria"),
    ("Hamilton Puckett","dapibus.quam@outlook.com","Canada"),
    ("Michal Brzezinski","magna@icloud.pl","Poland"),
    ("Zofia Lis","zofial00@hotmail.pl","Poland"),
    ("Aisha Yakubu","ayakubu80@outlook.com","Nigeria"),
    ("Miguel Cardenas","euismod@yahoo.com","Peru"),
    ("Luke Jansen","nibh@hotmail.edu","Netherlands"),
    ("Roger Pettersen","nunc@protonmail.no","Norway");

Expected output

Query OK, 10 rows affected (0.02 sec)
Records: 10  Duplicates: 0  Warnings: 0

Run a SELECT query¶

SELECT queries retrieve data from one or more tables based on specified criteria. They are the most common type of query and can be used for various purposes, such as displaying, filtering, sorting, aggregating, or joining data. SELECT queries do not modify the data in the database but can affect the performance if the query involves large or complex datasets.

mysql>SELECT id, name, email, country FROM employees WHERE country = 'Poland';

Expected output

+----+-------------------+---------------------+---------+
| id | name              | email               | country |
+----+-------------------+---------------------+---------+
|  5 | Michal Brzezinski | magna@icloud.pl     | Poland  |
|  6 | Zofia Lis         | zofial00@hotmail.pl | Poland  |
+----+-------------------+---------------------+---------+
2 rows in set (0.00 sec)

Run an Update query¶

UPDATE queries modify existing data in a table. They are used to change or correct the information stored in the database. UPDATE queries can update one or more columns and rows simultaneously, depending on the specified conditions. They may also fail if they violate any constraints or rules defined on the table.

An example of an UPDATE query and then run a [SELECT](#select-query) with a WHERE clause to verify the update.

mysql> UPDATE employees SET name = 'Zofia Niemec' WHERE id = 6;

Expected output

Query OK, 1 row affected (0.01 sec)
Rows matched: 1  Changed: 1  Warnings: 0

mysql> SELECT name FROM employees WHERE id = 6;

Expected output

+--------------+
| name         |
+--------------+
| Zofia Niemec |
+--------------+
1 row in set (0.00 sec)

Run an INSERT query¶

INSERT queries add new data to a table. They are used to populate the database with new information. INSERT queries can insert one or more rows at a time, depending on the syntax. The query may fail if it violates any constraints or rules defined on the table, such as primary keys, foreign keys, unique indexes, or triggers.

Insert a row into a table and then run a SELECT with a WHERE clause to verify the record was inserted.

mysql> INSERT INTO `employees` (`name`,`email`,`country`)
VALUES
("Kenzo Sasaki","KenSasaki@outlook.com","Japan");

Expected output

Query OK, 1 row affected (0.01 sec)

mysql> SELECT id, name, email, country FROM employees WHERE id = 11;

Expected output

+----+--------------+-----------------------+---------+
| id | name         | email                 | country |
+----+--------------+-----------------------+---------+
| 11 | Kenzo Sasaki | KenSasaki@outlook.com | Japan   |
+----+--------------+-----------------------+---------+
1 row in set (0.00 sec)

Run a Delete query¶

DELETE queries remove existing data from a table. They are used to clean up the information no longer needed or relevant in the database. The DELETE queries can delete one or more rows at a time, depending on the specified conditions. They may also trigger cascading deletes on related tables if foreign key constraints are enforced.

Delete a row in the table and run a SELECT with a WHERE clause to verify the deletion.

mysql> DELETE FROM employees WHERE id >= 11;

Expected output

Query OK, 1 row affected (0.01 sec)

mysql> SELECT id, name, email, country FROM employees WHERE id > 10;

Expected output

Empty set (0.00 sec)

Troubleshooting¶

Connection Issues: Double-check credentials, ensure service is running, and verify firewall configurations if applicable.
Permission Errors: Grant necessary permissions to users using GRANT statements within the MySQL shell.
Package Installation Issues: Refer to Percona documentation and online forums for specific error messages and solutions.

Security best practices¶

Strong Passwords: Utilize complex and unique passwords for all users, especially the root account.
Minimize Permissions: Grant users only the privileges necessary for their tasks.
Disable Unnecessary Accounts: Remove test accounts and unused accounts.
Regular Backups: Implement consistent backup routines to safeguard your data.
Keep Software Updated: Maintain Percona Server and related packages updated with security patches.
Monitor Server Activity: Employ tools, like Percona Monitoring and Management, and logs to monitor server activity for suspicious behavior.

Next step¶

Choose your next steps

Get expert help¶

If you need assistance, visit the community forum for comprehensive and free database knowledge, or contact our Percona Database Experts for professional support and services.

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Last update: 2024-11-15