myeclipse5.1 + mysql 5.0.1 + tomcat 5.0
 Caused by: java.sql.BatchUpdateException: Data truncation: Data truncated for column 'registerdate' at row 1
    at com.mysql.jdbc.ServerPreparedStatement.executeBatch(ServerPreparedStatement.java:657)
    at org.hibernate.jdbc.BatchingBatcher.doExecuteBatch(BatchingBatcher.java:57)
    at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:174)
    ... 43 more
com.briup. Could not execute JDBC batch update


怎摸回师？