MySQL Database Connection in Java Sample

Performing basic operations with a database in MySQL using Java

Continuing the previous guide, it is possible now to create and perform any operations using a database in MySQL. Let’s start with the simplest operation of creating a database in MySQL using Java and performing standard queries.

In this tutorial we let the user enter credentials for establishing the database connection.

mysql database connection in java

It is necessary to note that the process of connecting to MySQL from Java requires creating additional variable types. Connection, Statement, and ResultSet are required for receiving values from the database. These are just rules for establishing a proper connection and operating on it in Java.

The first piece of code is for creating the database:

mysql database connection in java sample

mysql database connection in java example

Output of the code running in NetBeans

mysql database connection in java sample analyzed

 

Output in NetBeans; Changes in MySQL schema

mysql database connection in java assignment

java connect to mysql database example

Executing queries

java connect to mysql database example analyzed

Output in MySQL Workbench

Another important note on this program is that before establishing connection and executing any queries, we opened ResultSet, Statement, and Connection, which are necessary to be closed after program execution. This is shown below.

java connect to mysql database example of assignment

This MySQL database connection in Java sample is really interesting and useful for students. We have seen that students need help with this topic often. We have decided to present this sample here for free. It shows Java connect to MySQL database, an example, which is written with all the necessary details. Also, on our blog, you can find some of the most helpful samples for different disciplines.

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