CREATE TABLE referrals (
`id` int(11),
`exam_id` varchar(50),
`shares` varchar(50),
`service` varchar(255),
`referrer_amt` varchar(255),
`referee_amt` varchar(255)
);

INSERT INTO referrals VALUES (N'2',NULL,NULL,N'Studio',N'75',N'25');
INSERT INTO referrals VALUES (N'5',N'',N'',N'Student',N'20',N'1');
INSERT INTO referrals VALUES (N'7',N'201',N'1',N'Exam',N'1',N'1');
