Null Table Field Values
Alpha Anywhere does not really have the concept of a NULL value for a table field value. If you want to test if the field is empty, then you use these expressions:
The following table details null values for various Xbasic data types.
You cannot distinguish between records that have no value, and those that have a 0 in them. The .DBF table format, which Alpha Anywhere uses, has no concept of a NULL numeric value. = 0
You cannot distinguish between records that have no value, and those that have a .f. value. = .f.
= 00/00/0000 12:00:00 00 am
= 12:00:00 00 am