The data in this section gives information about how updates and deletes affected indexes on data-only-locked tables:
“Upd/Del DOL Req Maint” reports the number of update and delete operations that potentially required modification to one or more indexes.
“# of DOL Ndx Main” reports the number of indexes that required maintenance as a result of update or delete operations.
“Avg DOL Ndx Maint/Op” reports the average number of indexes per update or delete operation that required maintenance.