I have a CSV file that will insert mobile numbers in to a database and use the following to build the table
CREATE TABLE IF NOT EXISTS `".$tablename."` (
`number` varchar(11) NOT NULL,
`message` varchar(160) DEFAULT NULL,
`sent` varchar(1) NOT NULL DEFAULT '0',
`date` timestamp NULL DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
once the data has been inserted what command should i run to ensure that anything in the numbers in unique and remove any duplicates.
I wish for this to be done once the data has been inserted so that if a user submit's a CSV with duplicate numbers they do not have to remove them or get an error.