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Archive of posts tagged OWB

Parallel downgrades to serial after an OWB 10.1.0.4 upgrade

For the last few days we’ve encountered a problem with our OWB mappings running with wildly varying performance from one day/mapping to the next and we were a little confused as to why…figured it out now and thought I’d blog what we found… The problem we found was that we were getting lots of “Parallel [...]

TRUNCATE command marks previously UNUSABLE indexes as USABLE

Yes, I’m back…but on an adhoc basis as I still don’t have enough time for this really! Yeah – I know, you’re all in the same boat I came across this problem on the warehouse the other day and was slightly surprised by what was going on… We have an OWB mapping which does a [...]