See how try and otherwise protect custom column math from type errors in Power Query, saving time and keeping your refresh ...

Null values can be a significant hurdle in data transformation, particularly when dealing with financial data. While Power Query provides various methods to tackle these null values, the coalesce ...

A sparse column is where a majority of values in a column are going to be NULL and a table that supports these sparse columns is called a wide table. You are actually allowed up to 30,000 columns now ...

One of the trickiest aspects of relational database management can be dealing with missing information. The standard method of representing missing information is to set the “value” to null. A null ...

Null or nonexistent data gets complicated when the application expects a data value and gets nothing or unexpected values; that's when you must perform coding that properly handles these situations to ...