Monday, November 17, 2008

The alert log, tail -f, Flatland and Windows DBAs

I was working with Dan Morgan over at PSOUG Saturday and mentioned to him that the ADR Command Interpreter (ADRCI) in 11g provides `tail -f`-like capabilities for the alert log, including on Windows. He was impressed by this, as previously, we have had to download third-party software to do anything like `tail -f` against the alert log on Windows.

c:\> adrci
ADRCI: Release - Beta on Mon Nov 17 10:29:51 2008
Copyright (c) 1982, 2007, Oracle. All rights reserved.
adrci> show alert -tail 100 -f

I imagine the ability to follow the tail of logfile to be nothing short of revelatory for some Windows-only DBAs, some of whose eyes I have seen visbly widen in amazement as they watched output appear in the cmd window real-time from the alert log. I described it to Dan as being like popping out from a two-dimensional world into a world where you suddenly realize there are three dimentions. Wow! Everything looks so colorful!

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