Welcome to Kontext

Join our community for cloud, data and IT professionals.

Featured sites
Spark

Apache Spark installation guides, performance tuning tips, general tutorials, etc.

*Spark logo is a registered trademark of Apache Spark.

Hadoop

Articles about Apache Hadoop installation, performance tuning and general tutorials.

*The yellow elephant logo is a registered trademark of Apache Hadoop.

Code Snippets & Tips
Code snippets and tips for various programming languages/frameworks. All code examples are under MIT or Apache 2.0 license unless specified. 
Teradata
Tutorials and information about Teradata.
ASP.NET Core
Articles about ASP.NET Core 1.x, 2.x, 3.x and 5.0.
.NET Framework
Everything about .NET framework, .NET Core and .NET Standard. 
Python Programming
Programming with Python. 
Tools

Tools, Frameworks installation guide and usage tutorials. 

Java Programming
Java Programming related.
Streaming Analytics

Streaming analytics related tutorials and ideas.

Kontext Column
Kontext Column

Want to publish data, programming and cloud related articles? Follow three steps to create your columns.

Learn more arrow_forward
visibility 9
thumb_up 0
access_time 14 days ago
visibility 9
thumb_up 0
access_time 20 days ago
PySpark: Read File in Google Cloud Storage
visibility 103
thumb_up 0
access_time 2 months ago
Spark - Read from BigQuery Table
visibility 40
thumb_up 0
access_time 2 months ago
Semi-public Access Level is Available
visibility 13
thumb_up 0
access_time 2 months ago
visibility 18
thumb_up 0
access_time 2 months ago
Pandas - Save DataFrame to BigQuery
visibility 19
thumb_up 0
access_time 2 months ago
Load JSON File into BigQuery
visibility 42
thumb_up 0
access_time 2 months ago
visibility 17
thumb_up 0
access_time 2 months ago
visibility 35
thumb_up 0
access_time 2 months ago
visibility 11
thumb_up 0
access_time 2 months ago


Series

See all
Advanced Spark Topics

Advanced Spark Topics

Advanced Spark related topics and tutorials. These articles are focusing on more advanced Spark topics incl. framework, architecture, etc. 

Querying Teradata using SQL

Querying Teradata using SQL

This series collects commonly used SQL queries to retrieve data from Teradata database. It also shows you how to do some basic filters and transformation using SQL statements. 

Install Big Data Tools on Linux

Install Big Data Tools on Linux

This series provides detailed tutorials about installing big data tools such as Hadoop, Spark, Sqoop, Zeppelin, Hive, Sqoop, etc. on UNIX-alike systems such as Linux or MacOS.  

* Logos used in the picture are registered trademarks of Apache or Linux foundations. 

Connecting to Databases via Python

Connecting to Databases via Python

There are quite a few different packages available that can be used in Python to connect to databases. This series provides examples about using Python to connect to SQL Server, Teradata, SQLite, Oracle, MySQL, etc. 

Read and Write Files via Python

Read and Write Files via Python

This series provides examples and tutorials about reading and writing files via Python.

Hive SQL - DDL

Hive SQL - DDL

Hive SQL DDL (Data Definition Language) tutorials. This series provides examples about how to create Hive databases, tables (incl. managed and external), views, etc.  

Install Teradata Tools & Utilities

Install Teradata Tools & Utilities

This series shows you how to install Teradata tools incl. Teradata virtual machine image, Utilities tools. etc. on Windows.

With these tools, you can practice Teradata SQL and test Teradata new features easily in your machine. 

Parse, Load and Write Files in Spark

Parse, Load and Write Files in Spark

This series includes articles about how to read and write files in Spark incl. plain text file, CSV, TSV, XML, Parquet, Avro, Orc, etc.