I seem to recall that there are utilities out there that can detect and fix corrupt tables. I assume (he says nervously), that there are some that can re-index tables without losing the Persistant Relations with-in the DBC.

Does anybody recall any product names for utilities that do these things? (especially the re-indexing)
Are any of them callable from with-in an application? (Something that can be automated)
Does anybody have any other notes of interest in this area?