It's time to meet the Guideline Support Library, a small helper library that provides some missing functionality. I'll show you how to ensure a pointer is never null, which will make your applications ...

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 ...

Learn the differences between Is Null and IsNull() in Access Your email has been sent How many null values exist? What is the difference between a null value and a blank entry? This article answers ...