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 Oracle 11g this is working:

SELECT CASE WHEN A+B>C then case when A=B AND B=C THEN 'Equilateral'
   WHEN A=B OR B=C OR A=C THEN 'Isosceles'
   WHEN A!=B or B!=C OR A!=C THEN 'Scalene' END
   ELSE 'Not A Triangle' END
   FROM TRIANGLES;