> For the complete documentation index, see [llms.txt](https://nag-9-s.gitbook.io/spark-notes/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://nag-9-s.gitbook.io/spark-notes/spark-20.md).

# Spark 2.0

Apache Spark has had two core contexts that are available to the user. The `sparkContext` made available as `sc` and the `SQLContext` made available as `sqlContext`, these contexts make a variety of functions and information available to the user. The `sqlContext` makes a lot of DataFrame functionality available while the `sparkContext` focuses more on the Apache Spark engine itself.

However in Apache Spark 2.X, there is just one context - the `SparkSession`.

If you are using the Spark Shell you will automatically get a SparkSession called spark to accompany the SparkContext called sc.