WebWriting The CSV File Now to write the CSV file. Because CSVWriter works in terms of Java collection types, we need to convert our Scala types to Java collections. In Scala you should do this at the last possible moment. The reason for this is that Scala's types are designed to work well with Scala and we don't want to lose that ability early. WebJun 3, 2024 · Read CSV file in Spark Scala . Read Here . spark with scala. How to calculate Rank in dataframe using scala with example . Read Here . spark with scala. Join in spark using scala with example . Read Here . spark with scala. How to execute Scala script in Spark without creating Jar . Read Here .
Write and Read Parquet Files in Spark/Scala - Spark & PySpark
WebMar 17, 2024 · val rdd = sqlContext.read.format ("csv").option ("header", "true").load ("hdfs://0.0.0.0:19000/Sales.csv") // Convert rdd to data frame using toDF; the following import is required to use toDF function. val df: DataFrame = rdd.toDF () // Write file to parquet df.write.parquet ("Sales.parquet") } def readParquet (sqlContext: SQLContext) = { WebJan 31, 2024 · Read and Parse a JSON from CSV file In order to read a JSON string from a CSV file, first, we need to read a CSV file into Spark Dataframe using spark.read.csv ("path") and then parse the JSON string … how many k is 2 miles
How to process a CSV file in Scala alvinalexander.com
WebApr 12, 2024 · 10 min read. Save. The Factory Design Patterns in Scala. ... factory method and abstract factory, using some code examples. This will be done from the perspective of Scala, a pure object and functional oriented language. Code snippets ... val endsWith = s.substring(pos) endsWith match {case ".csv" => csvReader(s) case ".json" => … WebScala Copy spark.read.table("..") Load data into a DataFrame from files You can load data from many supported file formats. The following example uses a dataset available in the /databricks-datasets directory, accessible from most workspaces. See Sample datasets. Scala Copy WebDec 1, 2024 · Follow the steps as mentioned below: Step 1: Create Spark Application The first step is to create a spark project with IntelliJ IDE with SBT. Open IntelliJ. Once it … how many ki points can a monk spend per round