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drop table result;
drop table students;

create table students(name varchar(60), marks int);
create table result(name varchar(60), class varchar(20));


alter table students add primary key (name);
alter table result add foreign key (name) references students(name);

insert into students values('Ruturaj', 1300);
insert into students values('Tanmya', 830);
insert into students values('Tanish', 930);

drop procedure grade;

delimiter @@
create procedure grade(
	in sname varchar(20)
)
begin 

	declare res int;
	
	select marks,name  into cmarks,cname from students where cname=name and sroll=roll_no;
	
	if cmarks <= 1500 and cmarks >= 990 then
		insert into result values(cname, 'Distinction');