UNLOAD PLUS for DB2

The architecture of UNLOAD PLUS for DB2 comprises several key components that work together to provide high-speed data unloading. The primary components include: * **UNLOAD PLUS Engine:** This is the core component that manages the overall unload process. It coordinates the activities of other components and handles error handling and logging.

* **Data Mover:** This component is responsible for the actual data transfer from the DB2 tables to the output datasets. It utilizes optimized data access methods and parallel processing to maximize performance. * **Control Card Processor:** This component parses the control cards, which define the unload operations, including the source tables, output datasets, and data formatting options.

* **Logging and Reporting:** The utility generates detailed logs and reports to provide information about the unload process, including performance metrics, errors, and warnings. These components communicate through internal interfaces and utilize DB2 APIs for data access. The utility interacts with DB2 databases and requires access to the necessary datasets for input and output.

Network requirements depend on the location of the output datasets. The utility supports various output formats, including delimited, fixed-length, and XML. The control cards are the primary interface for configuration and management.

The utility integrates with DB2 security and respects DB2's access control mechanisms.