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How do nested SELECT statements and WITH clauses function in SQL queries?
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Data Analyst
Marketer
General
Prepare examples of both subqueries and Common Table Expressions (CTEs) to demonstrate when each approach is more appropriate for complex queries.
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Hard Difficulty
Hard questions require advanced understanding and critical thinking. Here, your problem-solving skills are key, as these questions often involve complex scenarios needing in-depth analysis and well-structured responses.
SQL question
SQL questions test your ability to work with relational databases. Demonstrate your proficiency in writing queries, understanding database design, optimizing performance, and extracting meaningful information from structured data.