I need a sql software for my minecraft server because i have a plugin where it is needed. What software do I need and how can I use sql on my server?
What are the exact requirements of the plugin?
Basically you can use MySQL.
Now the question is: What is your Minecraft server running on? Is it localhost?
Then you have to install MySQL on your PC or rent a database / create it for free on a Free website (not recommended!)
Did you host your Minecraft server with a provider? Then you also have to rent / get a database
Or do you have Minecraft running on a v / root server? Then, as long as Linux is installed, you can install MySQL: apt-get install mysql-server (package name may vary depending on the distribution, e.g. Ubuntu, Mint, Debian!)
You can then log in with mysql -u root -p and create databases.
If that's too much paperwork for you, you can also install phpmyadmin, there are lots of videos about it.
Free of charge so I host it myself with the PC
Okay, then it is best if you also host MySQL on your PC. Free hosters can experience data loss / outages