JPA 3 and Hibernate persistence.xml file As developers migrate their old Java Persistence API applications to JPA 3, their progress is often halted when an incorrectly configured JPA 3 persistence.xml ...

What are the 4 JDBC driver types? If you dig into the API specification, you’ll notice there are four different JDBC driver types: The Type 1 JDBC driver is simply a JDBC-ODBC bridge. The Type 2 JDBC ...