Database: RPGs

id	name	year	edition	stars
1	Dungeons & Dragons	1975	1	1
2	Dungeons & Dragons	1980	2	1
3	Advanced Dungeons & Dragons	1985	1	1

Getting started

sudo apt-get install mysql-server

You'll be asked for a password.

mysql -u root -p

The -u requests a user, while -p tells it to prompt for a password.

List all databases:

show databases;

Make a new database;

create database creatures;

Start work on the new database:

use creatures;

create table stats (Strength VARCHAR(2), Speed VARCHAR(2), Dexterity(2));

This creatures a row called 'stats' within the 'creature'table' with a number of variables, all of type VARCHAR (a variable length character string).

Now you can insert data (which would normally be provided by a user via php or some-such).

insert into stats (Strength,Speed,Dexterity) values (-1,0,+1)

Now have a look at the info:

select * from stats

The old way to delete info by selection was:

delete * from stats where Charisma='0'

...but now it's:

delete from stats where Charisma='0'

Update a thing:

update stats

set Speed='-1',Charisma='-2'

where Strength=0;

Leaving out the specifier 'where' means you're updating the entire database.

Control order with

SELECT * FROM stats ORDER BY Strength;

Or for descending order, suffix 'DESC'.

select * from stats ORDER by Date DESC;

Try more at w3schools.