For TDWM, DBQLogTbl has a column 'ExceptionValue' which is documented in Teradata 13 as: "Specifies what type of Teradata DWM exception occurred." While in Teradata 12, it is documented as: "Specifies what type of Teradata DWM exception occurred. The value indicates that one of the following limits was exceeded: 01- Exception time limit 02- CPU time (AMP and PE) limit 03 - AMP CPU skew limit 04 - AMP I/O count limit 05 - AMP I/O skew limit 06 - Max row count (for a step) 08 - Blocked time limit 09 - Disk to CPU ratio 10 - Spool space limit"