This will get the names of all the columns as one long string ready to use in a select statement. N.B. There is a list of column names to exclude (In this case '???COLUMNS_TO_EXCLUDE???')

SELECT GROUP_CONCAT(COLUMN_NAME)
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_SCHEMA = '???MY_SCHEMA???' AND
	TABLE_NAME='???MYTABLE_NAME???' AND
    COLUMN_NAME NOT IN ('???COLUMNS_TO_EXCLUDE???')
ORDER BY ORDINAL_POSITION;