테이블 스키마 내용 알아보는 쿼리문

SELECT  B.COLUMN_NAME 

        , B.DATA_TYPE,

        B.DATA_LENGTH,

        B.NULLABLE ,

        B.COLUMN_ID,

        A.COMMENTS

FROM    USER_COL_COMMENTS A, USER_TAB_COLUMNS B

WHERE  B.TABLE_NAME = A.TABLE_NAME 

    AND B.COLUMN_NAME = A.COLUMN_NAME 

    AND B.TABLE_NAME LIKE 'TIT_OBJECT_MST'

ORDER BY B.COLUMN_ID;