Firebird is a relational database management system written in C++, open–source and based on Interbase version 6. It uses SQL language which makes its learning curve quite low. It is less known than the highly popular MySQL / MariaDB but also used in large projects for its efficiency.

On the other hand, some of the features of the application are the following:

• It is scalable
• Support the Client/Server architecture by TCP protocol.
• Many drivers are available for various programming languages such as PHP, Java or C++.
• Quite secure in user management.
• Cross-platform. With installable binaries for Windows, Linux, BSD, Solaris, and others.

So I will teach you how to install it and we will take the opportunity to do some small tests with the application.

Install Firebird on Ubuntu 20.04 / 18.04

The version that is available in the official Ubuntu 18.04 repositories includes Firebird. But the included version is quite old and does not take advantage of the new features of the recent versions as the correction of quite critical bugs.

In the case of Ubuntu 20.04 already Firebird 3 is in the official repositories. That is, nothing needs to be added.

Only for Ubuntu 18.04:

Fortunately, we have a dedicated repository for Ubuntu 18.04, so let us get to work.

Open a terminal session or connect to your server using SSH and add the repository.

:~$ sudo add-apt-repository ppa:mapopa/firebird3.0

After it is added. Refresh the APT cache and install the necessary packages:

:~$ sudo apt update

For Ubuntu 20.04 / 18.04:

:~$ sudo apt firebird3.0-server

During installation, you will be informed that the default user is “SYSDBA”. Define a password for this main user. It has to be quite secure.

Once you have defined the password. All you have to do is reconfigure the package so that all the changes are properly applied.

:~$ sudo dpkg-reconfigure firebird3.0-server

And it is ready to use.

Working with Firebird on Ubuntu 20.04 / 18.04

To enter the Firebird administration console and start using commands, just execute:

:~$ sudo isql-fb

With this we will be able to execute commands. And to get out just use this other one:

> quit;

Before starting to create databases and tables, it is necessary to talk about one thing. Firebird can store and access your databases from anywhere SQLite style, but can also restrict the location of them.

To make it accessible from anywhere or from a specific directory, just edit its configuration file:

:~$ sudo nano /etc/firebird/3.0/firebird.conf

Leave it as it is in the image to allow access to the database from any directory. There you can set a restriction to a particular directory.

Save the changes and close the file. Then, to apply the changes, just restart the service.

:~$ sudo systemctl restart firebird3.0

Creating databases and tables

Now we can start creating new databases and tables.

First we connect again to the Firebird shell.

:~$ sudo isql-fb

And then, we proceed to create the new database with the following syntax:

:> create database ["database_path.fdb"] user ['user']password '[password]';

For example:

:> create database "/var/lib/firebird/3.0/data/first_database.fdb" user 'SYSDBA' password 'angelo123';

Then, to use it or rather to connect to it we use this other command:

:> connect "/var/lib/firebird/3.0/data/first_database.fdb" user 'SYSDBA' password 'angelo123';

Now we’re ready to start creating tables.

For this example I will create a table with only two fields.

:> CREATE TABLE STUDENT (ID INT NOT NULL PRIMARY KEY, NAME VARCHAR(25));

So, you can show all the tables by using this command:

:> show tables;

Now, I am going to insert some data. Just use the following command:

:> INSERT INTO STUDENT VALUES (1, 'Angelo');

And get the data:

:> select * from STUDENT;

As you can see being SQL language, the commands and operations are similar to MySQL / MariaDB and PostgreSQL.

Finally, you can show the installed version:

:> show version;

And that is it.

Conclusion

Firebird may not be popular but is considered by many projects for its efficiency. Being of the SQL family its commands are not so different from those of other better known programs such as MySQL or MariaDB. So we only have to work with it.

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We already know that the database is an essential part of any application. Especially if we have to record transactions or data in it. However, we also know that there are many database management systems. So, which one to choose? It all depends on the circumstances. Therefore, it is good that there are many alternatives. One of them is Firebird.

Firebird is a relational database management system written in C++, open-source and based on Interbase version 6. It uses SQL language which makes its learning curve quite low. It is less known than the highly popular MySQL / MariaDB but also used in large projects for its efficiency.

On the other hand, some of the features of the application are the following:

• It is scalable
• Support the Client/Server architecture by TCP protocol.
• Many drivers are available for various programming languages such as PHP, Java or C++.
• Quite secure in user management.
• Cross-platform. With installable binaries for Windows, Linux, BSD, Solaris, and others.

So, let us do it.

Install Firebird on CentOS 8

1.- Enable the EPEL repository on CentOS 8

The latest available version of Firebird can be obtained by downloading the source code from the project website and then compiling it. However, it is available in the EPEL repository, so we have to enable it.

For this, I recommend you to read our post:

How to enable the EPEL repository on CentOS 8?

There I explain step by step the process.

2.- Install Firebird on CentOS 8

After the repository has been enabled, simply use the following command to perform the installation:

:~# dnf install firebird

During the process, you will have to accept the GPG key from the repository. It will then start the download and installation.

Once you’ve installed it. You can access the program shell with the command:

:~$ isql-fb

In the previous command, you have to run it as the root user.

Inside it you can start working with the application, creating databases and tables.

However, it is recommended to see the configuration file where you can, for example, set a specific directory for the databases. Or specify that anywhere can be created and accessed.

:~$ sudo nano /etc/firebird/firebird.conf

Finally, you can check the help to learn about the firebird command:

:~$ firebird -h

So, enjoy it.

Conclusion

Firebird is a not-so-popular database manager that is quite useful for applications of various kinds. In this post, you’ve learned how to install it on CentOS 8.

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The post How to install Firebird on CentOS 8? appeared first on Linux Windows and android Tutorials.