Using Oracle

When using JPA, you have the option to use the Oracle database.

As Oracle is a proprietary database, we cannot give it the same level of support that we do for our other options:

• Its driver is proprietary, so we cannot bundle it with JHipster
• We cannot give it the same level of test, as it is not available on Mac OS X (the final JHipster builds and tests are made on a Macbook Pro)

When using Oracle with JHipster, you will need to install the Oracle JDBC driver manually:

• Download the driver (ojdbc7.jar for Java 8) from the Oracle website
• Copy it to your application’s lib/oracle/ojdbc/7/ folder
• You will need to rename your driver, from ojdbc7.jar to ojdbc-7.jar, in order to follow Maven’s naming conventions.

When using Oracle with JHipster, the following limitations will be applicable

• Entity names cannot be more than 26 characters, this is due to Oracle’s 30 character limitation for object names, and we reserve 4 characters to generate primary key sequence for the generated tables.
• Entity field names cannot be more than 30 characters
• Oracle reserved keywords cannot be used as Entity names or Field names.