Algorithm
Problem Name: Sql -
In this HackerRank Functions in SQL problem solution,
Write a query identifying the type of each record in the TRIANGLES table using its three side lengths. Output one of the following statements for each record in the table:
- Equilateral: It's a triangle with 3 sides of equal length.
- Isosceles: It's a triangle with 2 sides of equal length.
- Scalene: It's a triangle with 3 sides of differing lengths.
- Not A Triangle: The given values of A, B, and C don't form a triangle.
nput Format
The TRIANGLES table is described as follows:
Each row in the table denotes the lengths of each of a triangle's three sides.
Sample Input
Sample Output
Isosceles
Equilateral
Scalene
Not A Triangle
Code Examples
#1 Code Example with SQL
Code -
SQL
SELECT CASE
WHEN A + B <= C OR A + C <= B OR B + C <= A THEN 'Not A Triangle'
WHEN A = B AND B = C THEN 'Equilateral'
WHEN A = B OR B = C OR A = C THEN 'Isosceles'
ELSE 'Scalene'
END
FROM TRIANGLES;