SQL Server 2017

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CREATE TABLE  "AGENTS" 
   (	
    "AGENT_CODE" CHAR(6) NOT NULL PRIMARY KEY, 
	"AGENT_NAME" CHAR(40), 
	"WORKING_AREA" CHAR(35), 
	"COMMISSION" DECIMAL(10,2), 
	"PHONE_NO" CHAR(15), 
	"COUNTRY" VARCHAR(25) 
	 );

INSERT INTO AGENTS VALUES ('A007', 'Ramasundar', 'Bangalore', '0.15', '077-25814763', 'USA');
INSERT INTO AGENTS VALUES ('A003', NULL, 'London', '0.13', '075-12458969', 'UK');
INSERT INTO AGENTS VALUES ('A008', 'Alford', 'New York', '0.12', '044-25874365', 'France');
INSERT INTO AGENTS VALUES ('A011', 'Ravi Kumar', 'Bangalore', '0.15', '077-45625874', NULL);
INSERT INTO AGENTS VALUES ('A010', 'Santakumar', 'Chennai', '0.14', '007-22388644', 'Japan');
INSERT INTO AGENTS VALUES ('A012', 'Lucida', 'San Jose', '0.12', '044-52981425', NULL);
INSERT INTO AGENTS VALUES ('A005', NULL, 'Brisban', '0.13', '045-21447739', 'USA');
INSERT INTO AGENTS VALUES ('A001', 'Subbarao', 'Bangalore', '0.14', '077-12346674', 'Japan');
INSERT INTO AGENTS VALUES ('A002', 'Mukesh', 'Mumbai', '0.11', '029-12358964', 'France');
INSERT INTO AGENTS VALUES ('A006', 'McDen', 'London', '0.15', '078-22255588', 'USA');
INSERT INTO AGENTS VALUES ('A004', 'Ivan', 'Torento', '0.15', '008-22544166', NULL);
INSERT INTO AGENTS VALUES ('A009', NULL, 'Hampshair', '0.11', '008-22536178', NULL);

12 rows affected

AGENT_CODE	AGENT_NAME	WORKING_AREA	COMMISSION	PHONE_NO	COUNTRY
A001	Subbarao	Bangalore	0.14	077-12346674	Japan
A002	Mukesh	Mumbai	0.11	029-12358964	France
A003	null	London	0.13	075-12458969	UK
A004	Ivan	Torento	0.15	008-22544166	null
A005	null	Brisban	0.13	045-21447739	USA
A006	McDen	London	0.15	078-22255588	USA
A007	Ramasundar	Bangalore	0.15	077-25814763	USA
A008	Alford	New York	0.12	044-25874365	France
A009	null	Hampshair	0.11	008-22536178	null
A010	Santakumar	Chennai	0.14	007-22388644	Japan
A011	Ravi Kumar	Bangalore	0.15	077-45625874	null
A012	Lucida	San Jose	0.12	044-52981425	null