Scala Programming Projects

by Mikael Valot, Nicolas Jorand

Publisher: Packt Publishing

Release date: September 2018

ISBN 978-1-78839-764-3

Topic: Web Services, Java Programming, Computer Programming Languages, Scala Programming.

Read by Jaime Montoya from 1:23 PM July 6, 2021 to 8:21 AM September 10, 2021 GMT.

My highlights and comments

"You can also use the module to execute SQL queries as you would with a relational database." ("Fetching And Persisting Bitcoin Market Data" section)

I frequently use this to explore data in ORC files using SQL queries:

val df = spark.read.orc("gs://[bucket and path I am reading ORC files from]")

						val df.createOrReplaceTempView("[viewName]")

						spark.sql("SELECT * FROM [viewName] WHERE ...").show(false)

Created: 2021-09-10 09:27:14 Last updated: 2021-09-10 09:27:14