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MySQL
MySQL (officially pronounced as /maɪ ˌɛskjuːˈɛl/ "My S-Q-L", and unofficially as /maɪ ˈsiːkwəl/ "My Sequel") is an open-source relational database management system (RDBMS); in July 2013, it was the world's second most widely used RDBMS, and the most widely used open-source client–server model RDBMS. It is named after co-founder Michael Widenius's daughter, My. The SQL acronym stands for Structured Query Language. The MySQL development project has made its source code available under the terms of the GNU General Public License, as well as under a variety of proprietary agreements. MySQL was owned and sponsored by a single for-profit firm, the Swedish company MySQL AB, now owned by Oracle Corporation. For proprietary use, several paid editions are available, and offer additional functionality.Instalasi MySQL
Instalasi MySQL Database pada CentOS dapat dilakukan dengan langkah-langkah sebagai berikut, namun kali ini kita menggunakan MariaDB yang merupakan aplikasi pengganti MySQL. Lakukan instalasi MariaDB dengan menjalankan perintah berikut,
# yum install mariadb-server mariadb
Kemudian jalankan service mariadb
# systemctl start mariadb
# systemctl enable mariadb
Setelah service MariaDB jalan. Lakukan konfigurasi awal MariaDB dengan menjalankan perintah berikut,
# mysql_secure_installation
Akan muncul beberapa perintah, ikuti sebagai berikut.
NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MariaDB SERVERS IN PRODUCTION USE! PLEASE READ EACH STEP CAREFULLY!
In order to log into MariaDB to secure it, we'll need the current
password for the root user. If you've just installed MariaDB, and
you haven't set the root password yet, the password will be blank,
so you should just press enter here.
Enter current password for root (enter for none): (tekan enter)
OK, successfully used password, moving on...
Setting the root password ensures that nobody can log into the MariaDB
root user without the proper authorisation.
You already have a root password set, so you can safely answer 'n'.
Change the root password? [Y/n] Y
New password: (masukkan password)
Re-enter new password: (masukkan password)
... success.
By default, a MariaDB installation has an anonymous user, allowing anyone
to log into MariaDB 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? [Y/n] Y
... 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? [Y/n] Y
... Success!
By default, MariaDB 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? [Y/n] Y
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? [Y/n] Y
... Success!
Cleaning up...
All done! If you've completed all of the above steps, your MariaDB
installation should now be secure.
Thanks for using MariaDB!.
Setelah itu, MariaDB telah dapat digunakan, untuk masuk kedalam aplikasi database mariadb ketikkan perintah berikut,
# mysql -u root -p
Lalu masukkan password root yang telah disetting tadi, kemudian anda dapat menambahkan database atau melakukan hal lainnya dengan command mysql.
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