In this blog, I walk through one of the most useful but confusing topics in Power Query – working with nested tables.
We start with the fundamentals and look at two basic ways to approach nested tables:
transforming the tables directly, or creating a new column and using those nested tables to calculate new values. From there, we go deeper into how to navigate rows, columns, and column names inside nested tables, how to do calculations with nested tables, and how to understand the context shift from the outer table to the inner table.
I also cover some very practical Power Query techniques like:
• extracting columns, rows, and column names from nested tables
• calculating things like averages from tables inside a column
• dynamically combining all columns from nested tables
• combining only the common columns across nested tables
If you’re learning Power Query M language, or you often work with nested tables, table functions, dynamic combine logic, and advanced data transformation, this video will help you understand the logic much better.
