mysql - sql error (1241): operand should contain 1 column(s) - order by dates -


i'm trying find last deployment associated serial number, , without getting latest date, multiple lines particular serial number. i'm getting error 1241 when enter following:

select deployment, device_serial_number action_archive  (.....) group device_serial_number order 'date'

one method uses subquery. looks this:

select aa.* rom action_archive aa (.....) ,       `date` = (select max(aa2.date)                 action_archive aa2                 . . . ,                       aa2.device_serial_number = aa.device_serial_number                );

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