Access - Keep last most component in Last Name field

I have a field Last Name, that may or may not contain more than one entities, separated by a space. I am hoping to retrieve the last most component before the first space going from right to left.


De La Cruz
Guzman Cruz

In all instances, I am hoping to receive


I have tried
Right([Last Name],Len([Last Name])-InStr([Last Name],",")-1)
IIf([Last Name] Like "* *",Left([Last Name],InStr([First Name]," ")-1),[Last Name])
IIf([Last Name] Like "* *",Left([Last Name],InStr([First Name]," ")+1),[Last Name])

Please advise.
exp vgAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Use InstrRev() to do your searching from the end of the string.
Scott McDaniel (Microsoft Access MVP - EE MVE )Infotrakker SoftwareCommented:
This should work:

IIf(InStr([Last Name], " ")<>0, Right([Last Name], Len([Last Name]) - InStrRev([Last Name], " ")), [Last Name])

Open in new window

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
exp vgAuthor Commented:
Thanks so much.
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Microsoft Access

From novice to tech pro — start learning today.