DIRECT YES processing phases

This topic describes the processing phases of UNLOAD PLUS and their primary functions when you use DIRECT YES.

Related topics

Data sets for DIRECT YES

Understanding UNLOAD PLUS execution modes

Number of DB2 threads that UNLOAD PLUS uses

Object-status-with-DIRECT-YES

DIRECT YES restrictions

Data-translation

How-UNLOAD-PLUS-works


Phase

Description

UTILINIT

During this phase, UNLOAD PLUS completes the following processes:

  • Initializes the job
  • Reads, parses, and verifies the UNLOAD command
  • Processes object definition information from the Db2 catalog or DDLIN data set
  • Dynamically allocates output data sets

UNLOAD

During this phase, UNLOAD PLUS completes the following processes:

  • Unloads table space data
  • Sorts the data if you specify ordering
  • Writes to the output data sets (SYSRECnn, SYSREDnn, and reference files)

UTILTERM

During this phase, UNLOAD PLUS completes the following processes:

  • Performs the termination processing for the utility
  • Creates the control statement data set (SYSCNTLn)
  • Optionally updates the BMCHIST table in the UNLOAD PLUS database

The following figure illustrates processing during each phase:

DIRECT_YES_processing_phase.png


 

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