Hello, there,

Sorry to bother you but I'm experiencing a very peculiar error when I'm using TKPROF.

I want to TKPROF a rather large trace file (1.5Gb) with explain (using the SYS schema). Obviously, there's an output file including in the options too.

Now, when I execute the command, Oracle tells me:

ERROR: input trace file has incompatible format
This version of TKPROF is incompatible with trace files generated by pre-Oracle7 databases.

This is most peculiar as none of our databases have been pre-Oracle7 for at least two years (and the last change to the trace file was about three days ago). I suspect there is corruption happening in the databases, but I have no idea where and this is what's causing the error (we had to reinstall the Oracle software a couple of weeks ago, but all seems to be perfectly fine). However, this is only my wild hunch. I've checked on Metalink and found hardly anything. I would be very, very grateful if you could help.

Mark