To query a Spark DataFrame, you must first create a xe "Spark (Apache):table view of a DataFrame"xe "table view of a Spark DataFrame"table view, which enables Spark SQL to query the DataFrame like a table in a ________ database.
A) hierarchical
B) graph
C) key-value
D) relational

Question

Quizplus · Accepted Answer

A table in a relational database consists of rows and columns of data, which is similar to the structure of a DataFrame in Spark. Therefore, creating a table view of a DataFrame allows Spark SQL to query it like a table in a relational database.

To Query a Spark DataFrame, You Must First Create a Xe