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.
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:
Output of the code running in NetBeans
Output in NetBeans; Changes in MySQL schema
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.
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