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  3. Introduction to Spark SQL in Python

Exercise

Create a SQL table from a dataframe

A dataframe can be used to create a temporary table. A temporary table is one that will not exist after the session ends. Spark documentation also refers to this type of table as a SQL temporary view. In the documentation this is referred to as to register the dataframe as a SQL temporary view. This command is called on the dataframe itself, and creates a table if it does not already exist, replacing it with the current data from the dataframe if it does already exist.

Instructions

100 XP
  • Load csv data from the file trainsched.txt into a dataframe stored in a variable named df.
  • Create a temporary table from df. Call the table "table1".