What is the difference between `INNER JOIN` on a subquery vs a CTE for the same logic?

Advanced SQL Developer Medium

Advanced SQL Developer — Medium

What is the difference between `INNER JOIN` on a subquery vs a CTE for the same logic?

Key points

  • CTEs and subqueries can be functionally equivalent
  • CTEs improve query readability and allow for reuse
  • Some databases may materialize CTEs for optimization
  • Subqueries in `INNER JOIN` can also be inlined for performance

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