## Algorithm

Problem Name: Sql - Type of Triangle

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;
``````
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