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

this answer is working well in sql * plus but not in hackerrank i dont know why? try this.

declare
 cursor mytriangle is select A,B,C from triangles;
 a triangles.A %type;
 b triangles.B %type;
 c triangles.C %type;
 begin
 open mytriangle;
 if mytriangle%isopen then
 loop
 fetch mytriangle into a,b,c;
 exit when mytriangle %notfound;
 case
 when a+b<=c or b+c<=a or a+c<=b then
 dbms_output.put_line('Not A Triangle');
 when a=b and b=c then
 dbms_output.put_line('Equilateral');
 when a=b or b=c or c=a then
 dbms_output.put_line('Isoceles');
 when a+b>=c and b+c>=a and a+c>=b and a!=b and b!=c and c!=a then
 dbms_output.put_line('Scalene');
 else
 dbms_output.put_line('');
 end case;
 end loop;
 close mytriangle;
 else dbms_output.put_line('cannot open the cursor');
 end if;
end;