Workday Senior Data Operations Engineer interview questions

I had a 30 minute phone screen with a recruiter. The recruiter gave me a lot of helpful information for the next round, but the communication was odd. I was sent an email before the phone screen saying I had been rejected, even though I had the interview scheduled. This was a mistake, per the recruiter. Then, I was told my first round interview was going to be at a certain time, but turns out it was a day later. The day before the interview, I was wrongly sent an email meant for another candidate that made me believe that my interview was once again canceled. The day of of the interview one of the interviewers was 20 minutes late when the interview was only 30 minutes. I know reviews are often really emotional and have to be taken with a grain of salt, but this may have possibly been the worst interview experience I've ever had. Not only was the process very disorganized, I was rejected with the information that they felt other candidates had more experience in relational databases. Well, that may be true, but I have a master's degree where I took courses on relational databases and 5+ years experience working with relational databases, so when one of the interviewers is 20 minutes late that leads me to believe that my qualifications were not accurately accessed.