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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 AND c != a THEN 'Scalene'
WHEN a = b AND b = c THEN 'Equilateral'
WHEN (a = b AND a != c) OR (a = c AND a != b) OR (b = c AND c != a) THEN 'Isosceles'
END
FROM triangles;
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Type of Triangle
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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 AND c != a THEN 'Scalene' WHEN a = b AND b = c THEN 'Equilateral' WHEN (a = b AND a != c) OR (a = c AND a != b) OR (b = c AND c != a) THEN 'Isosceles' END FROM triangles;