In this article, we’ll show you how to set up your own SQL database server. This will allow you to store and query data using the structured query language (SQL).
There are many different ways to set up a SQL database server. In this article, we’ll be using the free and open source MySQL server.
Before You Begin:
Before you begin, you’ll need to have the following things set up:
- A computer that can run the MySQL server software. This can be a local desktop or laptop computer, or a remote server.
- A text editor. We recommend using a code editor like Atom, which is free and easy to use.
- The MySQL server software. You can download this from the MySQL website.
- The MySQL Workbench software. This is a graphical tool that you can use to manage your database. You can download this from the MySQL website.
Creating a Database:
First, we’ll need to create a database. In MySQL, a database is a collection of tables. Tables are where we store our data. To create a database, we’ll use the “CREATE DATABASE” command.
We’ll name our database “mydatabase”. You can name your database whatever you like.
CREATE DATABASE mydatabase;
Now that we have our database, we can create some tables inside of it.
Creating a Table:
Tables are where we store our data in a database. To create a table, we’ll use the “CREATE TABLE” command.
We’ll name our table “mytable”. You can name your table whatever you like.
CREATE TABLE mytable (
id INT NOT NULL AUTO_INCREMENT,
name VARCHAR(255) NOT NULL,
age INT NOT NULL,
PRIMARY KEY (id)
);
Now that we have our table, we can insert some data into it.
Inserting Data Into a Table:
To insert data into a table, we’ll use the “INSERT INTO” command.
We’ll insert two rows of data into our table. The first row will have an id of 1, a name of “John Smith”, and an age of 30. The second row will have an id of 2, a name of “Jane Doe”, and an age of 25.
INSERT INTO mytable (id, name, age)
VALUES (1, “John Smith”, 30), (2, “Jane Doe”, 25);
Now that we have some data in our table, we can query it.
Querying Data From a Table:
To query data from a table, we’ll use the “SELECT” command.
This will select all of the columns from our table:
SELECT * FROM mytable;
This will select the name column from our table:
SELECT name FROM mytable;
This will select the name and age columns from our table:
SELECT name, age FROM mytable;
You can also use the “WHERE” clause to query specific rows from a table.
For example, this will query all of the rows from our table where the age is 30:
SELECT * FROM mytable WHERE age = 30;
And this will query all of the rows from our table where the age is less than 30:
SELECT * FROM mytable WHERE age < 30;
1) Download and install the latest version of MySQL from here: http://dev.mysql.com/downloads/mysql/.
2) Follow the installation instructions provided by MySQL.
3) Once MySQL is installed, open the “MySQL Command Line Client” program from your Start menu.
4) Type in the following command, replacing “root” with the username you set up during the MySQL installation: mysql -u root -p
5) Press Enter, then type in your password when prompted.
6) You should now see a message that says “Welcome to the MySQL monitor”. This means that you’re logged in and can start creating databases.
7) To create a database, type in the following command, replacing “mydatabase” with the name of your database: CREATE DATABASE mydatabase;
8) To use your database, type in the following command, replacing “mydatabase” with the name of your database: USE mydatabase;
9) Now you can create tables and insert data into them. For more information on how to do this, see the MySQL documentation here: http://dev.mysql.com/doc/.
10) When you’re finished working with your database, type in the following command to log out: quit;
Conclusion:
In this article, we’ve shown you how to set up your own SQL database server. We’ve also shown you how to create a database, create a table, insert data into a table, and query data from a table.
