Eliminate empty columns in datasets with Power Query. Explore automated, reusable solutions for efficient and adaptable data cleaning.

Null means "undefined" in SQL, so numerous online services don't think Christopher Null exists.

IS NULL and IS MISSING are predicates that test for a missing value. IS NULL and IS MISSING are used in the WHERE, ON, and HAVING expressions. Each predicate resolves to true if the sql-expression's ...

It is in these kinds of query executions that the null monster lurks to foil us. Certainly, there are ways of writing queries so that the null rows will be included as nor­mally desired, but the query ...