`created` datetime default NULL, # creation timestamp
`created_ip` varchar(45) default NULL, # creator ip
`created_by` int(11) default NULL, # creator user_id
`modified` datetime default NULL, # modification timestamp
`modified_ip` varchar(45) default NULL, # modifier ip
`modified_by` int(11) default NULL, # modifier user_id
`created` datetime default NULL, # creation timestamp
`created_ip` varchar(45) default NULL, # creator ip
`created_by` int(11) default NULL, # creator user_id
`modified` datetime default NULL, # modification timestamp
`modified_ip` varchar(45) default NULL, # modifier ip
`modified_by` int(11) default NULL, # modifier user_id