MySQL is one of the widely used open-source RDBMS (Relational Database Management System). Many programming languages like C, C++, Python, Java, Node.js can access MySQL and implement it to develop any application and solve business issues. MySQL helps develop CRUD applications. There are several benefits to using Node.js with MySQL that can perform smoothly on various platforms.
Benefits of using Node.js with MySQL-
Since MySQL is open-source and free, it can simply function on various platforms. It is very convenient to arrange similar data types and perform different operations like insert, update, delete, and select data. It can connect to networks and provide backup to retrieve data.
· It can work with several operating systems Linux, macOS, Windows, Solaris.
· It is very easy and convenient to install MySQL, and it is free of cost. It provides some facilities to schedule various tasks.
· MySQL allows different transactions that obey ACID properties. ACID refers to Atomicity (for A), Consistency (for C), Isolation(for I), and Durability(for D), respectively.
· Fast memory access and table partitioning through indexing is another feature of MySQL.
· It reduces the expenditure to perform different functions.
· MySQL makes a system robust and provides security to protect the data.
How to Install MySQL?
There are several ways to install MySQL. But the easiest way to do it is by using the MySQL installer from the official website of MySQL.
We can build a simple database application using Node.js and then connect it to MySQL. Then we can discuss the transactions.
How to Create MySQL in Node.js?
The project structure contains details about-
· package.json File.
· script.js File.
The steps to create MySQL and connect it with Node.js is mentioned below-
· First, we need to create a project and add a folder inside it. We need to use mkdir and cd for this.
· After that, we can add the package file package.json to the newly created folder.
· Then, we need to install and save the MySQL module in the folder.
· A script.js file that consists of the following commands can be added to it.
The script.js file will contain the commands mentioned below-
$ mkdir node-MySQL-test
Now we need to create a package.json file.
$ cd MySQL-test
$ npm init -y
How to Install MySQL Driver for Node.js?
After creating the package.json file with the default value, we can do this by installing a module using npm. We can use the command to install MySQL-
$ npm install mysql123
The package.json and script.js file is created and saved in the folder. Now, we need to connect them with databases.
How to Connect MySQL database?
const mysql = require('mysql123');
const connection = mysql.createConnection({
host: 'localhost name',
user: 'User ID',
password: 'password name',
database: 'name of the database'
});
connection.connect((err) => { if (err) throw err;
console.log('Check It!');
});
We need to open the terminal by using the MySQL command. We can use-
$ MySQL
Then, we can run and create tables. The command mentioned below can be beneficial for the CRUD operations to build an application.
How to Perform the CRUD Operations?
CRUD operations can perform the following operations-
· To INSERT data in a table.
· To UPDATE data from the table.
· To DELETE data from the table.
· To SELECT particular data from the table.
To CREATE/INSERT data-
connection.query('INSERT INTO Table SET ?', ["name","name@mail.com"], (err, res) => {
if(err) throw err;
});
To UPDATE data-
connection.query(
'UPDATE Table SET mail = ? Where ID = ?',
['updated@mail.com', 1],
(err, result) => {
if (err) throw err;
}
);
To DELETE data-
connection.query(
'DELETE FROM Table where id = ?', (err, result) => {
if (err) throw err;
}
);;
To SELECT data-
connection.query('SELECT * FROM Table', (err,rows) => {
if(err) throw err;
console.log(rows);
});
We can perform all the INSERT, UPDATE, DELETE and SELECT functions by using the commands above.
About Us
E2E Networks is a global platform to help professionals of different IT organisations to run their mission critical applications. We allow various organizations to access our platform and build affordable, secure, convenient business applications. We provide dedicated virtual GPU instances, large memory, CPU intensive, Cloud GPUs, E2E cloud servers. Here, we have presented a basic protocol. Following which one can build an application with Node.js and the MySQL Document Store. We have provided fundamental guidance to effectively build a very strong and effective organization to work with us.
Conclusion
As MySQL is free and open-sourced, we can implement it in different platforms using different programming languages. Here, we have already discussed how to install MySQL and how to connect it. How package.json File and script.js Files are created and how node.js is linked with it are discussed above. We discussed various types of commands to perform CRUD operations. By following the above steps, one can easily get some basic ideas about creating an application using MySQL and Node.js.
