Kontext Newsletter #12 (2021-11-16)

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Kontext Newsletter #12 (2021-11-16)

Dear Kontext newsletter subscribers, I hope you are doing well. This week's newsletter will feature some articles about Spark, Teradata, JDK, WSL, PostgreSQL, PySpark, etc.

If you have missed out our previous newsletters, you can find them here.

Spark - Save DataFrame to Hive Table

Spark provides flexible APIs to save data into a Hive table. You can overwrite or append. 

Convert TimeStamp to Date in Teradata

A small tip about converting timestamp or varchar columns to date columns in Teradata.

Install Open JDK on WSL

Follow this article to install Open JDK on your Windows Subsystem for Linux to run and build Java applications like Hadoop, Spark, etc.

PostgreSQL CLI (psql) Commands

This page provides some of the commonly used commands in psql CLI. 

PySpark Read Multiple Lines Records from CSV

This page shows you how to read multiple lines records CSV in Spark by using Python as programming language. If you prefer Scala or other Spark compatible languages, the APIs are very similar. 

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