Unable to store log data into database through JDBCAppender of Log4j

I am able to store the log data into the file as well as to display that on console. But unable to store the same into the database. I am not getting any error or warning while execution. The code of log.properties is as below : -
log4j.rootLogger=ERROR, C, FILE
log4j.logger.org.firebird=ERROR, C
log4j.logger.org.firebirdsql=ERROR, C
log4j.logger.org.apache.joran=ERROR, C
log4j.logger.org.apache.log4j.joran.action=ERROR, C
log4j.appender.FILE=org.apache.log4j.FileAppender
log4j.appender.FILE.file=/log.txt
log4j.appender.FILE.layout=org.apache.log4j.PatternLayout
log4j.appender.FILE.layout.ConversionPattern=[%d{MMM dd HH:mm:ss}] %-5p (%F:%L) - %m%n
log4j.logger.org.apache.log4j.jdbcplus.examples=DEBUG, JDBC
# console appender
log4j.appender.C=org.apache.log4j.ConsoleAppender
log4j.appender.C.layout=org.apache.log4j.PatternLayout
log4j.appender.C.layout.ConversionPattern=%d [%t] %-5p %c %x - %m%n
# JDBC appender using custom handlers, 2a)
log4j.appender.JDBC=org.apache.log4j.jdbcplus.JDBCAppender
log4j.appender.JDBC.connector=org.apache.log4j.jdbcplus.examples.MySqlConnectionHandler
log4j.appender.JDBC.sqlhandler=org.apache.log4j.jdbcplus.examples.SqlHandler
log4j.appender.JDBC.dbclass=com.mysql.jdbc.Driver
log4j.appender.JDBC2.url=jdbc:mysql:172.22.15.131/3306:plugins?
log4j.appender.JDBC2.username=user18
log4j.appender.JDBC2.password=user18
log4j.appender.JDBC.buffer=1
log4j.appender.JDBC.commit=true
log4j.appender.JDBC.sql=INSERT INTO logtest (id, prio, iprio, cat, thread, msg, layout_msg, throwable, ndc, mdc, mdc2, info,
addon, the_date, the_time, the_timestamp, created_by) VALUES (@INC@, '@PRIO@', @IPRIO@, '@CAT@', '@THREAD@', '@MSG@',
'@LAYOUT:1@', '@THROWABLE@', '@NDC@', '@MDC:MyMDC@', '@MDC:MyMDC2@', 'info timestamp: @TIMESTAMP@', '@LAYOUT@', cast
('@LAYOUT:3@' as date), cast ('@LAYOUT:4@' as time), cast ('@LAYOUT:3@ @LAYOUT:4@' as timestamp), 'me')
log4j.appender.JDBC.layout=org.apache.log4j.PatternLayout
log4j.appender.JDBC.layout.ConversionPattern=%m
Please help me out.. As I got stuck...

Hi,
This might help
http://avdeo.com/2008/05/21/uploading-excel-sheet-using-oracle-application-express-apex/
I think heading about that blog post is wrong. It is solution to import CSV.
But you can convert your Excels easilly to CSV.
I think import pure Excel is quite hard, and I have not seen any solutions.
See this post also
Importing Excel spreadsheet into Oracle via Apex
Br,Jari

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