Is writing server log files to a database a good idea?

Question

After reading an article about the subject from O\'Reilly, I wanted to ask Stack Overflow for their thoughts on the matter.

Answer 1

Log to DB if you can and it doesn't slow down your DB :)

It's way way way faster to find anything in DB then in log files. Especially if you think ahead what you will need. Logging in db let's you query log table like this:

select * from logs
where log_name = 'wcf' and log_level = 'error'

then after you find error you can see the whole path that lead to this error

select * from logs
where contextId = 'what you get from previous select' order by timestamp

How will you get this info if you log it in text files?

Edit: As JonSkeet suggested this answer would be better if I stated that one should consider making logging to db asynchronous. So I state it :) I just didn't need it. For example how to do it you can check "Ultra Fast ASP.NET" by Richard Kiessig.