Do you want to find out how to avoid duplicates in the results of a SQL SELECT query? This article will show you how.

Highlighting or even deleting duplicate records in Excel is simple but listing them isn't as easy. Fortunately, you can use Power Query to easily display a list of duplicate values or records.

How can we find duplicate values across multiple columns? For this task, we’ll use two Excel helper formulas: One to concatenate the columns you’re comparing; a second to count the duplicates.