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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 TriangleType
FROM triangles ;
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Type of Triangle
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Oracle:
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 TriangleType FROM triangles ;