Programming with the IMS Universal DL/I driver

Use the IMS™ Universal DL/I driver when you need to write granular queries to access IMS databases directly from a Java™ client in an non-managed environment.

Because of the fundamental differences between hierarchical databases and relational databases, sometimes the JDBC API does not provide access to the full set of IMS databases features. The IMS Universal DL/I driver is closely related to the traditional IMS DL/I database call interface that is used with other programming languages for writing applications in IMS, and provides a lower-level access to IMS database functions than the JDBC API. By using the IMS Universal DL/I driver, you can build segment search arguments (SSAs) and use the methods of the program communication block (PCB) object to read, insert, update, delete, or perform batch operations on segments. You can gain full navigation control in the segment hierarchy.