Checking for NULL Values

Checking for NULL Values

When you read a string from a character field in a snapshot/dynaset you can append a pair of double quotes to protect yourself from “Type mismatch” errors, if the field was to actually null.Is there a way to do the same thing with numeric fields in any way?

Unfortunately, there isn’t. Many times, a null value is significantly different than a zero value, so you can’t do that. I just check IsNull before I try to do something with it. However, I try to avoid allowing null values, just as a practice. Your database can also be set up to prevent Null values in the first place, if that’s appropriate for your situation.

See also  5 Benefits of Using Time Tracking Software

About Our Editorial Process

At DevX, we’re dedicated to tech entrepreneurship. Our team closely follows industry shifts, new products, AI breakthroughs, technology trends, and funding announcements. Articles undergo thorough editing to ensure accuracy and clarity, reflecting DevX’s style and supporting entrepreneurs in the tech sphere.

See our full editorial policy.

About Our Journalist