I agree with Orange and Gasman as to not storing the concatenated value.
It's much more flexible to construct the concatenation on demand. There are some tricks to make it look cleaner.
For example you may have a table with the fields- FirstName, MiddleName, LastName, Suffix.
Using something like -
FirstName & " " & MiddleName & " " & LastName & " " & Suffix
- will work but if the person has no middle name you'll have extra spaces between the first and last name.
To get around the extra spaces you use the fact that a Null plus (+) anything will always be Null.
"A" & Null = "A"
"A" + Null = Null
Note the grouping and uses of the ampersand (a string operator) and the plus sign (a mathematical operator)
(FirstName + " ") & (MiddleName + " ") & (LastName) & (" " + Suffix)
The above will always be properly spaced whether the person has a middle name or not. A Null MiddleName plus a space is Null.
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