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Questions table named "Books" with columns: BookID, Title, AuthorID. There's another table "Authors" with columns: AuthorID, AuthorName. Write a SQL query to fetch the authors who don't have any books ...

HackerRank HackerRank is a fantastic platform for honing your SQL skills, offering a variety of practice questions categorized by difficulty levels and SQL topics. With challenges ranging from basic ...

Key Takeaways Interviews for data analysts test technical and business understanding.Practicing real examples helps you ...