Type of Triangle in MYSQL

Question

Problem statement:

Write a query identifying the type of each record in the TRIANGLES table using its three side lengths. Output one of the followin

Answer 1

For MySQL:

select
  case
      when (a+b>c) and (a+c>b) and (b+c>a) then
           case
              when (a=b) and (b=c) and (a=c) then 'Equilateral'
              when (a=b) or (b=c) or (a=c) then 'Isosceles'
              else 'Scalene'
           end
       else 'Not A Triangle'
    end    
from TRIANGLES