What is the key difference between a clustered and a non-clustered index?

SQL Fundamentals Hard

SQL Fundamentals — Hard

What is the key difference between a clustered and a non-clustered index?

Key points

  • Clustered index orders table data by key
  • Non-clustered index stores pointers to data rows
  • Clustered index impacts physical data organization
  • Non-clustered index is a separate structure
  • Understanding this difference is crucial for optimizing database performance

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