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.

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.