select city,length(city) from station order by length(city),city limit 1;select city,length(city) from station order by length(city) desc,city limit 1;
Weather Observation Station 8
select city from station where city REGEXP '^[AEIOU].*[aeiou]$';
Higher Than 75 Marks
select name from students where marks > 75 order by right(name,3),id asc;
Type of Triangle
selectcase when(a+b>c and a+c>b and c+b>a)then(case when(a=b and b=c)then'Equilateral'
when(a=b or b=c or a=c)then'Isosceles'else'Scalene' end
)else'Not A Triangle' end
from triangles;
The Blunder
select ceil(AVG(salary) - AVG(replace(salary,'0',''))) from employees;
Top Earners
select max(salary*months),count(employee_id) from employee where salary*months =(select max(salary*months) from employee);
Weather Observation Station 18
set @a =(select min(lat_n) from station);set @b =(select min(long_w) from station);set @c =(select max(lat_n) from station);set @d =(select max(long_w) from station);select round(@c+@d-@a-@b,4);
Draw The Triangle 1
set @i = 21;select repeat('* ',@i:=@i-1) from information_schema.tables limit 20;
Binary Tree Nodes
/*
Enter your query here.
*/
select B2.N,
case when ((select count(*) from BST B1 where B1.P = B2.N)=0)then'Leaf'
when (isnull(B2.P)= 1)then'Root'else'Inner' end
from BST B2 order by B2.N;
Placements
/*
Enter your query here.
*/
select
T.name
from (select S.Id Id,S.name name,P.Salary Salary,F.Friend_Id FId,(select Packages.Salary from Packages where Packages.Id=FId) FSalaryFROM Students S, Friends F, Packages Pwhere F.Id=S.Idand P.Id=S.Id
) T
where FSalary>Salary
order by FSalary;
