> What tool are you using to run your SQL commands?

IBExpert 2.0.0.5 Personal Edition, but I tried IBConsole with the same
result.

repeating the same update sql in the same transaction takes a lot of time...
Very odd...
It's not going to access old generation of records, since the transaction
has the same number, so it should access the modified records. It should be
faster, since some records should be cached now, due first update. Besides
that, the second update doesn't really change anything. The field was
changed the first time, the second time is set to the same value :-(

Adrian Roman