比较oracle表字段是否一致

SELECT M.OWNER
,M.TABLE_NAME
,M.COLUMN_ID
,M.COLUMN_NAME
,M.DATA_TYPE
,M.DATA_LENGTH
,N.OWNER
,N.TABLE_NAME
,N.COLUMN_ID
,N.COLUMN_NAME
,N.DATA_TYPE
,N.DATA_LENGTH
FROM
(
SELECT OWNER
,TABLE_NAME
,COLUMN_ID
,COLUMN_NAME
,DATA_TYPE
,DATA_LENGTH
FROM DBA_TAB_COLUMNS
WHERE OWNER='TRADE'
AND TABLE_NAME='THISBANKREALDEAL'
) M LEFT JOIN
(
SELECT OWNER
,TABLE_NAME
,COLUMN_ID
,COLUMN_NAME
,DATA_TYPE
,DATA_LENGTH
FROM DBA_TAB_COLUMNS
WHERE OWNER='TRADE'
AND TABLE_NAME= 'TBANKREALDEAL'
) N ON M.COLUMN_ID =N.COLUMN_ID
AND M.COLUMN_NAME = N.COLUMN_NAME
AND M.DATA_TYPE = N.DATA_TYPE
AND M.DATA_LENGTH= N.DATA_LENGTH
ORDER BY M.TABLE_NAME, M.COLUMN_ID;