day : 18/07/2018 4 results

What Is JSON?

JSON is a data interchange format that is designed to be lightweight and easy to work with. It’s quite popular in web applications, and it can be considerably more flexible than a traditional relational data model. Several database engines support JSON, so you can store JSON data and use functions to operate on it. This includes decomposing, transforming, or even creating JSON data from regular relational data.   What Is JSON? JSON is an acronym for JavaScript Object Notation. It ...

Tweens: The Power Of Set Operations In SQL

In relational databases, it is frequent to have many to many relationships. We can have a customer-product relation, a student-course relation, physician-patient relation among many other forms. In this article, we are going to solve a complex problem, a query which is complicated to write for many developers. In these days all of us know what a streaming video platform is. Moreover, perhaps many of us have a monthly bill from one of the biggest streaming platforms: Netflix. The problem we ...

Sharing And Managing Shared Results

TeamSQL allows you to share the set of data returned after you execute a query via hyperlink. This means that you can share this data with somebody regardless of whether the person uses TeamSQL or not. The user to whom you’re sharing simply navigates to the URL you provide to see the data.   Share Results Before you can share your results, you’ll need to execute a query to return a set of data.   Once you’ve returned a set of results, you can right-click and ...

XPATH Language Usage With An Example In PostgreSQL

In these days XML documents are everywhere. They are mainly used to exchange information between applications; however, they are also used for many other purposes. Moreover, almost all database engines supported by TeamSQL include XML as a data type. In this article we use TeamSQL to store XML documents on a database table, then we extract elements from the XML by using XPath expressions, and finally, we execute queries inside the XML document.   XML Example XML documents are very ...