exp7, Sql Server - rextester

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--Sql Server 2014 Express Edition
--Batches are separated by 'go'

create table emp(emp_no integer,emp_name varchar(20),dept_no integer ,dept_name varchar (20),salary integer,hiredate date);
insert into emp values(1,'Jay',11,'sales',50000,'2012-09-25'),(2,'ashish',11,'sales',15000,'2003-07-22'),(3,'shreyas',10,'it',30000,'2000-11-05'),(4,'priya',15,'production',45000,'2010-04-15'),(7,'mona',15,'production',35000,'2010-10-05');
select * from emp;
create table dept(dept_no integer,location varchar(30));
insert into dept values(11,'mumbai'),(10,'thane'),(15,'kalyan'),(16,'marketing');
select * from dept;
select * from emp where salary>(select avg(salary) from emp);
select emp_no,emp_name,dept_name,location from emp left outer join  dept on emp.dept_no=dept.dept_no where dept_name='sales';
select max(salary) as max_salary,min(salary) as min_salary from emp;
select emp_no,salary,emp.dept_no,location from emp left outer join  dept on emp.dept_no=dept.dept_no where dept_name='production';
select emp_no,emp_name,format(hiredate,'MMM-dd-yyyy')as hiredate from emp ; 
select datediff(day,(select hiredate from emp where emp_name='ashish'),(select hiredate from emp where emp_name='shreyas'));

View schema
Execution time: 0,03 sec, rows selected: 22, rows affected: 9, absolute service time: 0,19 sec, absolute service time: 0,21 sec