Java Database Connectivity, or JDBC™ is technology in an application program interface facility that supports access from the Java language to any tabular data source. JDBC provides connectivity to a wide range of SQL databases.
Pega 7 uses JDBC to access its own PegaRULES database and can use JDBC to access external databases. You can define JDBC connections in the prconfig.xml file, Dynamic System Settings, or through a Database data instance.
For links to Oracle and IBM tools for JDBC debugging, see PDN article Troubleshooting JDBC problems with tools from Pegasystems and others.