new, Sql Server - rextester

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Create table student( sid int primary key,sname varchar (20), department varchar (20), dob date);

Create table author ( authorname varchar (20) primary key,age int not null ,phoneno int);

Create table  books(bid int primary key, title varchar (20),price float,authorname varchar(20), FOREIGN KEY (authorname) REFERENCES author (authorname) ON DELETE CASCADE);

Create table borrow (sid int,bid int , borroweddate date ,FOREIGN KEY (sid) REFERENCES student (sid) ON DELETE CASCADE,FOREIGN KEY (bid) REFERENCES books(bid) ON DELETE CASCADE);

Insert into student values (101,'steve','ise','2-12-2001');
Insert into student values (102,'rogers','cse','3-12-2001');
Insert into student values (103,'chris','mech','4-12-2001');
Insert into student values (104,'pratt','cse','5-12-2001');
Insert into student values (105,'pine','ise','6-12-2001');
Select * from student;

Insert into author values('milo',12,99009);
Insert into author values('robert',42,9638);
Insert into author values('scarlet',62,990349);
Insert into author values('hemsworth',19,9049);
Insert into author values('chad',92,9949);

Select * from author;

Insert into books values(201,'phoenix',100,'gaja');
Insert into books values(202,'groido',1000,'gsnapathi');
Insert into books values(203,'rory',200,'ganbhir');
Insert into books values(204,'megan',600,'goutha');
Insert into books values(205,'via',800,'kailadh');

Select * from books;

Insert into borrow values(101,201,'12-2-2020');
Insert into borrow values(102,202,'10-3-2020');
Insert into borrow values(101,203,'9-2-2020');
Insert into borrow values(104,204,'7-8-2020');
Insert into borrow values(103,205,'6-9-2020');
Select * from borrow;

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