From Jonathan Ball@21:1/5 to All on Mon Feb 11 12:57:05 2019
The catalog views SYSTABLESTAT and SYSTABLEINDEXSTAT contain days-used
columns. The descriptions of them in the database documentation, e.g. for SYSTABLESTAT, reads:
Maximum number of days any partition or member was used directly
by an application for native record I/O or SQL operations since
the last time the usage statistics were reset.
What causes usage statistics to be reset? I can find a procedure RESET_TABLE_INDEX_STATISTICS that resets them for indexes (and presumably logical files), but how about for the underlying tables? Is there some
other system activity that would cause a usage statistics reset?