# Data Platforms

## Databricks

1. [Databricks is ACID](https://databricks.com/glossary/acid-transactions#:~:text=ACID%20is%20an%20acronym%20that,operations%20are%20called%20transactional%20systems.)

<figure><img src="/files/jmBd8dwqMF8saZXuWDoM" alt=""><figcaption></figcaption></figure>

2. DB Learning Library
   1. [Free courses](https://www.databricks.com/training/catalog?costs=free)
   2. [Docs Optimization recommendations](https://docs.databricks.com/en/optimizations/index.html)
   3. [Comprehensive Guide to Optimize Databricks, Spark and Delta Lake Workloads](https://www.databricks.com/discover/pages/optimize-data-workloads-guide)
   4. [Vector Search](https://www.databricks.com/training/catalog/new-capability-overview-vector-search-2535)
   5. DB [for ML](https://www.databricks.com/training/catalog/get-started-with-databricks-for-machine-learning-2460)
   6. [DB for Data Engineering](https://www.databricks.com/training/catalog/get-started-with-databricks-for-data-engineering-1511)
3. (good) [Introduction & Tutorial](https://medium.com/@chuck.connell.3/databricks-a-history-and-introduction-438ce827227) - cluster / notebook / table / SQL / DataFrame / connections
4. [must know 7 concepts](https://www.datacamp.com/tutorial/introduction-to-databricks)

<figure><img src="/files/bBWmXXm2XdfzuLGdtcgE" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/nuQXf5MGLWl1RsGtVkua" alt=""><figcaption></figcaption></figure>

5. RDD vs Dataframe vs Dataset
   1. [2016 official blog post](https://www.databricks.com/blog/2016/07/14/a-tale-of-three-apache-spark-apis-rdds-dataframes-and-datasets.html)
   2. [linkedin blog post](https://www.linkedin.com/pulse/rdd-vs-dataframe-dataset-sanyam-jain-iwsfe/)
   3. [comparison on youtube](https://www.youtube.com/watch?v=aBUqIAGxeg8)
   4. [RDDs vs. Dataframes vs. Datasets – What is the Difference and Why Should Data Engineers Care?](https://www.analyticsvidhya.com/blog/2020/11/what-is-the-difference-between-rdds-dataframes-and-datasets/)
6. Optimizations
   1. [Optimization recommendations on Databricks](https://docs.databricks.com/en/optimizations/index.html)
   2. [Comprehensive Guide to Optimize Databricks, Spark and Delta Lake Workloads](https://www.databricks.com/discover/pages/optimize-data-workloads-guide)
   3. [How I Use Caching in Databricks to Increase Performance and Save Costs](https://blog.det.life/caching-in-databricks-explained-68c07bf1f76b)
   4. [Why and How: Partitioning in Databricks](https://medium.com/@eduard2popa/why-and-how-partitioning-in-databricks-e9e6f960db43)
7. Best Practices
   1. [official docs](https://docs.databricks.com/en/delta/best-practices.html)


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