text: /*
  
  Write a query identifying the type of each record in the TRIANGLES table using its three side lengths. Output one of the following statements for each record in the table:
  
  Equilateral: It's a triangle with 3 sides of equal length.
  Isosceles: It's a triangle with 2 sides of equal length.
  Scalene: It's a triangle with 3 sides of differing lengths.
  Not A Triangle: The given values of A, B, and C don't form a triangle.
  
  */
  
  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 triangles_type
  from TRIANGLES;