Learn how to use Excel's new GROUPBY and PIVOTBY functions through five real-world examples, ranging from easy to hard. This ...

The constraint that exposed a gap in my toolkit: a SQL challenge, zero internet allowed. Here's how I turned that gap into a permanent resource — with Claude. While interviewing recently, I hit a SQL ...

Learn SQL basics in just 15 minutes with this tutorial focused on using SQL with MySQL. Topics covered include: - What SQL is ...

In this article, I am going to discuss How to Implement PIVOT and UNPIVOT in SQL Server with examples. Please read our previous article where we discussed Change Data Capture in detail. The PIVOT and ...

In today’s data-rich environment, business are always looking for a way to capitalize on available data for new insights and increased efficiencies. Given the escalating volumes of data and the ...

In this tutorial, you learn how to move Azure SQL databases and elastic pools to a different Azure region, using Azure Resource Mover. In this tutorial, you learn how to: Check if you have Owner ...

Mobile apps now offer practical ways to learn data science, from coding and statistics to machine learning, anytime and anywhere. Tools like QPython, Programming Hub, and Khan Academy allow hands-on ...

It's important to plan for security before you configure your replication topology. This tutorial shows you how to better secure a replication topology. It also shows you how to configure distribution ...

The table below shows my favorite go-to R packages for data import, wrangling, visualization and analysis — plus a few miscellaneous tasks tossed in. The package names in the table are clickable if ...