SELECT IIF(A + B <= C OR B + C <= A OR A + C <= B, 'Not A Triangle', IIF(A = B AND B = C, 'Equilateral', IIF(A = B OR B = C OR A = C, 'Isosceles', 'Scalene') ) ) AS TriangleType FROM Triangles;

select case WHEN A+B<=C OR B+C<=A OR A+C<=B 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;

WHY THIS IS WRONG SELECT CASE WHEN A+B>C AND A+C>B AND B+C >A THEN CASE WHEN A=B OR B=C OR A=C THEN 'ISOSCELES' WHEN A=B AND B=C THEN 'EQUILATERAL' ELSE 'SCALESE' END ELSE 'NOT A TRIANGLE' END AS STATEMENT FROM TRIANGLES;

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' when A != B and B!= C and A!=C then 'Scalene' end from triangles;

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 A = C OR B = C THEN "Isosceles" ELSE "Scalene" END AS TRIANGLE_TYPE FROM TRIANGLES; this is my answer but still getting error can anyone help or tell whats problem