After verifying all of
your options click on the yellow arrow button to start the replay. You should
see the output of the trace in the bottom half of the split screen:
Figure 5. Output from replaying trace appears in bottom pane of Profiler
Any errors encountered
during the replay should appear in this section as well. Some common errors
you might encounter are:
[Microsoft][ODBC SQL Server Driver][SQL Server]Login failed for user 'marker'.
When you encounter this error verify the following:
The existence of the user in your development environment
The user's password must match the password of the user used to register the
SQL Server in Profiler (i.e. the user's password you see specified when you
select "Edit SQL Server Registration..." from the Tools menu, then select your
server and click Edit)
[Microsoft][ODBC SQL Server Driver][SQL Server]Invalid object name 'authors'.
This error is most likely caused by the user's
default database not being set correctly. You can use the following sql if
you like to change the user's default database: sp_defaultdb '<login>'
You can verify that the
trace is running by watching the bottom pane of the trace window for output
messages. Or you can execute sp_who2 in Query Analyzer and search for the logins
of the users in the trace capture.
Execute your new code that
you wanted to test for blocking. In my case this is the new sproc that deletes
data from 6 tables in the database. While I'm replaying the SQL Trace I start
our new sproc. Then I monitor the server activity. The main thing I'm watching
for is blocking. You can do this either through Enterprise Manager or the sp_who2
sproc. If you get tired of manually executing sp_who2 every few minutes you
can write a script that automatically polls the server for blocking. I wrote
one and you can download it here if you like: http://www.databasejournal.com/scripts/
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