In this post I will show you how to install Teradata Express (VMware) version 16.20 on VMware Workstation 15.5.0 Player on the Windows operating system. A few words about technologies…
In this post I will show you how to create a fully operational environment in 5 minutes, which will include: Apache Airflow WebServerApache Airflow WorkerApache Airflow SchedulerFlower - is a…
Oracle SQL Developer provides the feature to connect to many databases, including to Teradata, Microsoft SQL Server, IBM DB2, Sybase, MySQL and even Microsoft Access. All you need is the…
![[SOLVED] Teradata: [Error 3653] [SQLState 21S02] All select-lists do not contain the same number of expressions.](https://bigdata-etl.com/wp-content/uploads/2019/10/blake-connally-B3l0g6HLxr8-unsplash-300x200.jpg)
In this post, I will explain why you encountered the error message [Error 3653] [SQLState 21S02] All select-lists do not contain the same number of expressions, also known as Failed…
![[SOLVED] Teradata: [Error 3807] [SQLState 42s02] Object ‘XYZ’ does not exists.](https://bigdata-etl.com/wp-content/uploads/2019/10/emile-perron-xrVDYZRGdw4-unsplash_small-300x169.png)
In Teradata we can encounter an error [Error 3807] [SQLState 42s02] Object 'XYZ' does not exists or Failed [3807: 42s02] Object 'XYZ' does not exists, where 'XYZ' is the name…
In today's world, we often meet requirements for real-time data processing. There are quite a few tools on the market that allow us to achieve this. At the forefront we…
In this article we will focus only on showing how to quickly launch the MySQL database in a container. Using volumes, we do not lose changes that we make in…
In this short post you will find out what is the difference between the SET and MULTISET table and why you need to know the difference before creating your table.…
In this post, you will learn what the primary index is (PI), why it is worth determining it, and you will learn about types of PI. You will also read…
Problem At the beginning of your journey with Airflow I suppose that you encountered situation when you created multiple DAGs with some tasks inside and when you run all workflows…
