오랜만에 풀어 보는 SQL 문제

오랜만에 풀어 보는 SQL 문제

얼마 전 친한 형님이 급히 풀어달라는 과제가 있었는데, 그중에 SQL을 만드는 것이 있었다. You have been asked to get some answers from a database on a set of data. The database contains an archive of bids made by users for players over the years. The database contains years of data and you will need to write raw SQL queries to answer the questions. Using the table structure below, provide the SQL queries required to answer as many