Tutorial by Examples

A DataFrame is a distributed collection of data organized into named columns. It is conceptually equivalent to a table in a relational database. DataFrames can be constructed from a wide array of sources such as: structured data files, tables in Hive, external databases, or existing RDDs. Reading a...

In Spark, a DataFrame is a distributed collection of data organized into named columns. It is conceptually equivalent to a table in a relational database or a data frame in R/Python, but with richer optimizations under the hood. DataFrames can be constructed from a wide array of sources such as stru...