![]() The following two examples will show how easy this is, and how little the code changes when you migrate from one database server to another. Establish the JDBC connection to your database.Regardless of whether you're trying to connect to Oracle, SQL Server, MySQL, Postgres, mSQL, or Interbase (or any other JDBC data source), establishing a connection to a SQL database with JDBC is a simple two-step process: Once you have the correct JDBC driver installed, establishing a JDBC connection from your Java programs to your SQL database is pretty easy. Create a JDBC database connection in two steps Installation instructions will vary somewhat for each vendor, but it’s usually as easy as putting a JAR file in the lib folder of your Java project. Once you have the correct JDBC driver for your database, install it according to the instructions that came with it. The documentation for the database you’re using will usually tell you where you can download the JDBC driver for its database, but to make it easier, I've created a page of JDBC drivers for common SQL databases. Once you have the JDK, the next thing you need to do is to get the correct JDBC driver for your database. If you don't have it already, you can get the JDK/SDK for free at Oracle's Java web site, or it will also be included with many IDEs that you can use, including Eclipse, IntelliJ IDEA, and NetBeans. Obtaining the JDBC driverīefore you start working with JDBC, you'll need a copy of the Java JDK. Once you’re connected to the database with JDBC, most SQL queries are identical, or at least very similar. Note: I was going to update this tutorial to connect to MySQL and Postgres, but the databases you connect to don’t matter much that’s one of the beauties of JDBC, it makes the database you’re connecting to almost transparent. In the process I’ll show you how to connect to two different databases - Mini SQL (mSQL), and Interbase - just so you can see how the code changes when you switch from one database to another. This article shows a step-by-step example of how to establish a database connection from your Java programs to a SQL database using JDBC (i.e., creating a “JDBC connection”). Java’s JDBC technology lets you access information in SQL databases using standard SQL queries. If you’re interested in connecting your Java applications to standard SQL databases like Oracle, MySQL, SQL Server, and others, JDBC is what you need. ![]() Java database FAQ: How do I connect to a SQL database with Java and JDBC?
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