I am not able to log event messages into my sql server database. Everything is correct, it compiles well and gives no error, still nothing is updated to my database, i have created the table I am using AdoNetAppender, Please help me what may be the possible problems, my config file looks like:

<configuration>

    <configSections>
        <section name="log4net" type="System.Configuration.IgnoreSectionHandler"/>
    </configSections>

    <log4net>
        <appender name="AdoNetAppender" type="log4net.Appender.AdoNetAppender">
              <connectionType value="System.Data.SqlClient.SqlConnection, System.Data, Version=1.0.3300.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
              <connectionString value="data source=SQLSVR;initial catalog=RB;user id=sa;password=sa" />
              <commandText value="INSERT INTO Log ([Date],[Thread],[Level],[Logger],[Message]) VALUES (@log_date, @thread, @log_level, @logger, @message)" />
                <parameter>
                    <parameterName value="@log_date" />
                    <dbType value="DateTime" />
                    <layout type="log4net.Layout.RawTimeStampLayout" />
                </parameter>
                <parameter>
                    <parameterName value="@thread" />
                    <dbType value="String" />
                    <size value="255" />
                    <layout type="log4net.Layout.PatternLayout">
                        <conversionPattern value="%thread" />
                    </layout>
                </parameter>
                <parameter>
                    <parameterName value="@log_level" />
                    <dbType value="String" />
                    <size value="50" />
                    <layout type="log4net.Layout.PatternLayout">
                        <conversionPattern value="%level" />
                    </layout>
                </parameter>
                <parameter>
                    <parameterName value="@logger" />
                    <dbType value="String" />
                    <size value="255" />
                    <layout type="log4net.Layout.PatternLayout">
                        <conversionPattern value="%logger" />
                    </layout>
                </parameter>
                <parameter>
                    <parameterName value="@message" />
                    <dbType value="String" />
                    <size value="4000" />
                    <layout type="log4net.Layout.PatternLayout">
                        <conversionPattern value="%message" />
                    </layout>
                </parameter>
                <parameter>
                    <parameterName value="@exception" />
                    <dbType value="String" />
                    <size value="2000" />
                    <layout type="log4net.Layout.ExceptionLayout" />
                </parameter>
        </appender>

        <logger name="client">

            <level value="DEBUG"/>

            <appender-ref ref="AdoNetAppender"/>
        </logger>
    </log4net>
</configuration>