si.no   cus_name     date      status
  1      JOHN     2012-05-02   active

1      PAUL     2012-05-02   active ( not a new record just an 1st-update )

  1      JOSE     2012-05-02   active  ( not a new record just an 2nd-update )

CREATE TABLE IF NOT EXISTS `customer_record` (
`si.no` int(11) NOT NULL,
`cus_name` varchar(255) NOT NULL,
`date` DATETIME NOT NULL,
`status` varchar(255) NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8;