Take advantage of the NULL Object pattern to avoid writing too much boilerplate code in your application when checking for null values A null object is one that doesn’t have any referenced value. The ...

Don't let Null values derail your formulas. See how to use the NZ function to convert the values to zeroes. You’ve created a query that calculates an invoice total by adding the order total and the ...

This article is also available as a PDF download. Where errors are concerned, null values are an equal-opportunity menace. If an unhandled null value doesn’t generate a runtime error, it’ll show up in ...

Take advantage of the null object pattern in .NET to eliminate the need for null checks and avoid runtime errors in your applications. You might often encounter null reference exceptions in your ...

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 ...