Two Levels of Concurrency Control for Load Utilities in Teradata 13.10 - comment by carrie

For load utilities all work between the BEGIN WORKLOAD and END WORKLOAD are considered to be a Unit Of Work (UOW).  When a BEGIN WORKLOAD is received the UOW is defined and classified. All work within that UOW is run in the same workload (overriding where TDWM would have normally classified the individual queries).  Each request in the UOW has the WDOverride flag set to ‘T’ to reflect this override of the WD.
 
The WD override flag is also set if a user does a Set Session WD command to assign all work for a session to a specific WD.
 
Thanks, -Carrie