How to log SQL calls with NHibernate to the console of Visual Studio?

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To show the SQL in the output window of Visual Studio, configure log4net to use TraceAppender in your log4net config. This:

<appender name="DebugSQL" type="log4net.Appender.TraceAppender">
    <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] - %message%newline" />
    </layout>
</appender>

Then this:

<logger name="NHibernate.SQL" additivity="false">
    <level value="DEBUG" />
    <appender-ref ref="DebugSQL" />
</logger>

EDIT: I can’t seem to format this correctly here. See this link for code example

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