The first round of the interview is typically a telephonic screening to assess your qualifications and cultural fit. It involves discussing your resume, answering basic technical questions, and addressing behavioral queries to understand your past experiences and how you handle work situations. Preparation should include reviewing your resume, brushing up on fundamental concepts, and preparing questions for the interviewer. The second round, conducted face-to-face, is a more in-depth assessment of your technical skills and problem-solving abilities. This round includes complex SQL tasks, problem-solving exercises, and discussions about how well you fit with the team. Preparation should involve practicing advanced SQL queries, reviewing complex concepts, and preparing detailed examples from your past projects to illustrate your skills and experiences.