SQL & PL/SQL

Hi All,
We have table which is having below records.

DROP TABLE CATEGORY_MASTER;
/
CREATE TABLE CATEGORY_MASTER
(cat_1 VARCHAR2(10)
,cat_2 VARCHAR2(10)
,cat_3 VARCHAR2(10)
,cat_4 VARCHAR2(10)
,cat_5 VARCHAR2(10));

INSERT INTO CATEGORY_MASTER VALUES('CD','BOOK','APP','ELE','GEN');
/
COMMIT;

DROP TABLE CATEGORY_DETAIL;
/

CREATE TABLE CATEGORY_DETAIL
(category VARCHAR2(10),
category_desc VARCHAR2(30));
/

INSERT INTO CATEGORY_DETAIL
VALUES('CD','COMPACT DISK');

INSERT INTO CATEGORY_DETAIL
VALUES('BOOK','THRILLER BOOKS');

INSERT INTO CATEGORY_DETAIL
VALUES('APP','CONSUMER APPLICATION');

INSERT INTO CATEGORY_DETAIL
VALUES('ELE','ELECTRONICS');

INSERT INTO CATEGORY_DETAIL
VALUES('GEN','GENERAL');
/

SELECT *FROM
CATEGORY_MASTER ;

SELECT * FROM CATEGORY_DETAIL;

Below is my required output. In same single row the output records expected.
This table exists for long time.