oracle - JDBCAppended not working -


i trying use jdbcappender logging log4j messages. log not getting published in db though there aren't exceptions. how trace down problem? here example log4j entry:

`<appender name="db" class="org.apache.log4j.jdbc.jdbcappender">         <param name="url" value="jdbc:oracle:thin:@rsasitdb.corp.unifirst.com:1522:rsasit"/>         <param name="driver" value="oracle.jdbc.oracledriver"/>         <param name="user" value="rsa"/>         <param name="password" value="rsa"/>         <param name="sql" value="insert logs values('%x','%d','%c','%p','%m')"/>          <!-- <layout class="org.apache.log4j.patternlayout">              <param name="conversionpattern"                value="insert logging_samples_test (log_date, log_level, location, message) values ( '%d{iso8601}','%p', '%c;%l', '%m' )"              />          </layout> -->         <layout class="org.apache.log4j.patternlayout"></layout>     </appender> ------------------ <logger name="log4j.rootlogger" additivity="false">     <level value="debug"/>     <appender-ref ref="db"/>     </logger>`


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