Oracle interview questions

Everyone was friendly during the interview process. I was initially told that I would have five rounds of interviews, and then, at the end, I was told that I would have to go through another round. After six rounds of interviews, I was told that another candidate had been selected. The news hit me like a bolt from the blue, as I felt everything went well until the final round, The final round I could feel that the person wasn't much interested in my background, but all the other interviewers gave me positive feedback.