Sql

We interacted with Ado Kukic, Director of Developer Advocacy at DigitalOcean to discuss the transformation of the role of developers today. Here are the excerpts from our exclusive interview. Gone are the days when the knowledge of one particular technology was enough to get you a software job with a…

What is a common table expression (CTE)? A common table expression or CTE is a temporary result set (or a virtual table). It temporarily saves the output of a query to write other queries that reference it. CTEs are short lived. CTEs are virtual tables which are created during the execution of a query, used by the…

A person’s diet is the total amount of food and drink that they eat on a regular basis. People’s food choices are frequently influenced by a range of variables, including ethical and religious values, as well as medical need. A nutritious diet is critical for optimal health and nutrition. It…

A step-by-step tutorial on how to build a Web application, combining the Streamlit Python library and Versatile Data Kit. — In the last few months, I have contributed to a very interesting project, called Versatile Data Kit (VDK). VDK is a very powerful framework for ingesting inside a database data of different formats, including CSV files, JSON objects, and even data provided by REST API services.

How to use Union, Except and Intersect? Union operators are used heavily in RDBMSs and its important to understand them. In this article, we will discuss following to understand them — UNION UNION ALL EXCEPT INTERSECT Order of Evaluation UNION Use the UNION keyword to combine the results of two or…