Excel doesn’t have a direct equivalent. To achieve the same result, you’d either have to piece together complex formulas with functions like SEARCH or write custom VBA scripts. While those approaches ...

Array formulas let you perform calculations across entire ranges of data in a single formula. Hence, you can handle lightning-fast lookups, filtering, and sorting with just one po ...

SQL COUNT DISTINCT has been slow. It is, in essence, a grouping operation, which keeps traversed grouping field values for later comparisons. When the result set is too large, the data needs to be ...

Researchers at Renmin University of China have completed a comprehensive survey to date of methods for quickly and accurately counting the number of unique items in large datasets, a task vital to ...

Have you ever stared at a colorful Excel spreadsheet, wondering how to quickly calculate totals or counts based on cell colors? It’s a common frustration for anyone managing large datasets. While ...

The series of blog posts I wrote last year on semantic model memory usage, in particular this post on the query memory limit and the “This query uses more memory ...

Q. Could you explain how the UNIQUE function works in Excel? A. Excel’s UNIQUE is a dynamic array function that can be an essential tool for data analysts and accountants. This function allows users ...

One of the most common tasks in data analysis is counting unique entries within a dataset. This process can be time-consuming and prone to errors when done manually, but Excel 365 offers a solution ...

To count distinct values in Excel, you need to add the unique values with the first of the duplicate value. Although it sounds complicated, you will see that there are a few simple formulas to apply ...

Business issues such as incorrect transactions, data entry errors, technical glitches and poor system design may cause duplicate values in your data sets. Duplicate values can exist across rows or in ...