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insert into employee(emp_id,emp_name,emp_dep,emp_salary) values ('1','Rathore','CS','25000');
1.select * from employee where emp_dep == CS;
2.select emp_name from employee where emp_name LIKE 'A%' OR employee_name LIKE 'B%' order by emp_name
3.
4.
5.select count(distinct(emp_dep) from employee.
2. create table student(roll_no varchar(2),name varchar(10),branch varchar(3));
create table result(roll_no varchar(2),sem varchar(2),percentage number(3));
insert into student(roll_no,name,branch) values('1','Rathore','CS');
insert into result(roll_no,sem,percentage) values('1','Rathore','CS');
2.1 SELECT * FROM STUDENT NATURAL JOIN RESULT;
2.2 SELECT * FROM STUDENT LEFT JOIN RESULT ON STUDENT.roll_no = RESULT.roll_no where RESULT.roll_no IS NULL;
2.3 SELECT * FROM STUDENT RIGHT JOIN RESULT ON STUDENT.roll_no = RESULT.roll_no where STUDENT.roll_no IS NULL;
2.4 SELECT * FROM STUDENT FULL OUTER JOIN RESULT ON STUDENT.roll_no = RESULT.roll_no where STUDENT.roll_no IS NULL OR RESULT.roll_no IS NULL;
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