Introduction

Ever wanted to connect to a relational database using Java and didn’t know the URL connection string?

Then, this article is surely going to help you from now on.

Connect to a relational database using #Java with JDBC Driver Connection URL strings - @vlad_mihalcea https://t.co/vdCpoWvrIE pic.twitter.com/hy2OuQrYkC

— Java (@java) February 15, 2018

Oracle

The JDBC connection properties look as follows:

And, if you want to connect using a JDBC DataSource, this is what you need to use:

OracleDataSource dataSource = new OracleDataSource();
dataSource.setDatabaseName("high_performance_java_persistence");
dataSource.setURL("jdbc:oracle:thin:@localhost:1521/orclpdb1");
dataSource.setUser("oracle");
dataSource.setPassword("admin");

MySQL

The JDBC connection properties look as follows:

And, if you want to connect using a JDBC DataSource, this is what you need to use:

MysqlDataSource dataSource = new MysqlDataSource();
dataSource.setURL( 
    "jdbc:mysql://localhost/high_performance_java_persistence"
);
dataSource.setUser("mysql");
dataSource.setPassword("admin");

PostgreSQL

The JDBC connection properties look as follows:

And, if you want to connect using a JDBC DataSource, this is what you need to use:

PGSimpleDataSource dataSource = new PGSimpleDataSource();
dataSource.setDatabaseName("high_performance_java_persistence");
dataSource.setServerName("localhost");
dataSource.setUser("postgres");
dataSource.setPassword("admin");

SQL Server

The JDBC connection properties look as follows:

And, if you want to connect using a JDBC DataSource, this is what you need to use:

SQLServerDataSource dataSource = new SQLServerDataSource();
dataSource.setURL(
    "jdbc:sqlserver://localhost;instance=SQLEXPRESS;" +
    "databaseName=high_performance_java_persistence;" 
);
dataSource.setUser("sa");
dataSource.setPassword("adm1n");

MariaDB

The JDBC connection properties look as follows:

Db2 Express-C

The JDBC connection properties look as follows:

SAP HANA

The JDBC connection properties look as follows:

Informix

The JDBC connection properties look as follows:

HSQLDB

The JDBC connection properties look as follows:

And, if you want to connect using a JDBC DataSource, this is what you need to use:

JDBCDataSource dataSource = new JDBCDataSource();
dataSource.setUrl("jdbc:hsqldb:mem:test");
dataSource.setUser("sa");
dataSource.setPassword("");

H2

The JDBC connection properties look as follows:

Derby

The JDBC connection properties look as follows:

That’s it!

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Conclusion

Knowing the JDBC Driver Connection URL strings is mandatory if you want to connect to a relational database system from a Java application.

If there is a database system that I forgot to add, add a comment and I’ll update the article.

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