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

Excel formulas are getting scary good.

Power Query and Power Pivot help Excel users manage large datasets more efficiently. Power Query focuses on cleaning and preparing data, while Power Pivot handles analysis and reporting. Together, ...

In 2021, after catching the tech bug as a kid and earning a degree in communications, Ada got into tech writing by editing crypto guides. Ada's expertise now spans Windows, Android (especially Samsung ...

DuckDB is an amazing tool with deep integration with Python and R, but sometimes you just need data in Excel. xlDuckDb allows DuckDB SQL to be run within Excel. Query results are returned as regular ...

This article is not about ethics, privacy, security, ownership, or corporate governance — I am going to circumvent all of this here by using some made-up data relating to supermarket sales: Here, I ...

In 2021, after catching the tech bug as a kid and earning a degree in communications, Ada got into tech writing by editing crypto guides. Ada's expertise now spans Windows, Android (especially Samsung ...

In today’s competitive job market, securing a role in database management is difficult. SQL (Structured Query Language) remains a fundamental skill for database administrators, software developers, ...

Every data engineering team right now is being asked the same question: "How do we build a chatbot that talks to our data?" The prototypes are deceptively simple. A developer connects GPT-5.1 to a ...

Interviews for data analysts test technical and business understanding. Practicing real examples helps you explain your thought process better. Strong communication is as essential as technical ...

Excel is more than just a spreadsheet tool; it is a comprehensive platform for data analysis and business intelligence. By using its advanced tools—Power Query, Power Pivot, and DAX—you can elevate ...

Most people are familiar with data in the form of a spreadsheet, with labeled columns of different data types such as name, address, age, and so on. Databases work the same way, with each table laid ...