# Introduction - [50. Extras](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/50.-extras.md) - [49. FAQ (Interview Question) - 19](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/49.-faq-interview-question-19.md) - [48. FAQ (Interview Question) - 18](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/48.-faq-interview-question-18.md) - [47. FAQ (Interview Question) - 17](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/47.-faq-interview-question-17.md) - [46. FAQ (Interview Question) - 16](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/46.-faq-interview-question-16.md) - [45. FAQ (Interview Question) - 15](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/45.-faq-interview-question-15.md) - [44. FAQ (Interview Question) - 14](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/44.-faq-interview-question-14.md) - [43. FAQ (Interview Question) - 13](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/43.-faq-interview-question-13.md) - [42. FAQ (Interview Question) - 12](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/42.-faq-interview-question-12.md) - [41. FAQ (Interview Question) - 11](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/41.-faq-interview-question-11.md) - [40. FAQ (Interview Question) - 10](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/40.-faq-interview-question-10.md) - [39. FAQ (Interview Question) - 9](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/39.-faq-interview-question-9.md) - [38. FAQ (Interview Question) - 8](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/38.-faq-interview-question-8.md) - [37. FAQ (Interview Question) - 7](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/37.-faq-interview-question-7.md) - [36. FAQ (Interview Question) - 6](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/36.-faq-interview-question-6.md) - [35. FAQ (Interview Question) - 6](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/35.-faq-interview-question-6.md) - [34. Best Practices](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/34.-best-practices.md) - [33. Isolation Levels](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/33.-isolation-levels.md) - [32. Cache a Subset of the Data](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/32.-cache-a-subset-of-the-data.md) - [31. Delta & Apache Spark Caching](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/31.-delta-and-apache-spark-caching.md) - [30. Optimize Performance with Caching](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/30.-optimize-performance-with-caching.md) - [29. FAQ (Interview Question on Auto Optimize) - 5](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/29.-faq-interview-question-on-auto-optimize-5.md) - [28. FAQ (Interview Question on Auto Optimize) - 4](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/28.-faq-interview-question-on-auto-optimize-4.md) - [27. Auto Optimize](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/27.-auto-optimize.md) - [26. FAQ (Inteview Question on Optimization) - 3](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/26.-faq-inteview-question-on-optimization-3.md) - [25. FAQ (Interview Question on Optimization) - 2](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/25.-faq-interview-question-on-optimization-2.md) - [24. FAQ (Interview Question on Optimization) - 1](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/24.-faq-interview-question-on-optimization-1.md) - [23. Optimize Performace with File Management](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/23.-optimize-performace-with-file-management.md) - [22. Migrate Workloads to a Delta Lake](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/22.-migrate-workloads-to-a-delta-lake.md) - [21. Optimistic Concurrency Control](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/21.-optimistic-concurrency-control.md) - [20. Concurrency Control](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/20.-concurrency-control.md) - [19. History](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/19.-history.md) - [18. Vaccum](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/18.-vaccum.md) - [17. Update a Table](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/17.-update-a-table.md) - [16. Delete from a table](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/16.-delete-from-a-table.md) - [15. Table Metadata](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/15.-table-metadata.md) - [14. (Hands On) Update table Schema](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/14.-hands-on-update-table-schema.md) - [13. Schema Validation](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/13.-schema-validation.md) - [12. (Hands On) Read a Table](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/12.-hands-on-read-a-table.md) - [11. (Hands On) Write a Table](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/11.-hands-on-write-a-table.md) - [10. (Hands On) Create a Table](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/10.-hands-on-create-a-table.md) - [9. Dataframes](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/9.-dataframes.md) - [8. Basics about Notebooks](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/8.-basics-about-notebooks.md) - [7. Provisioning a Spark Cluster](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/7.-provisioning-a-spark-cluster.md) - [6. Free Account Creation in DataBricks](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/6.-free-account-creation-in-databricks.md) - [5. Introduction to Spark](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/5.-introduction-to-spark.md) - [4. Key Features of Delta Lake](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/4.-key-features-of-delta-lake.md) - [3. Introduction to Data Lake](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/3.-introduction-to-data-lake.md) - [2. Introduction to Delta Lake](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/2.-introduction-to-delta-lake.md) - [1. Introduction](https://architectures.gitbook.io/project/delta-lake-with-apache-spark-using-scala/introduction/1.-introduction.md) --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. 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