Need Help Comparing Data from Two SQL tables

I have two tables in a database and I'm trying to find items in one table that does not have a match in another table... All of the fields don't match, but just a couple.  Here's what I tried and it does return some records, however, as I spot check, it's returning records that do have a match.

select *  
from IronData B
where not exists (select * from ndxdata A where A.custbox <>''
      and A.custbox in (B.custboxnbr, B.SKPboxnbr));

I'm looking for any record from table B which fields 'custboxnbr' or 'skpboxnbr' do not match a record from table A's 'custbox' field
RavenTimAsked:
Who is Participating?

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

x
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.

LeandronnCommented:
select * from IronData
where custboxnbr not in (select custboxnbr from ndxdata where....)
or skpboxnbr not in (select skpboxnbr from ndxdate where....)
0
RavenTimAuthor Commented:
Sorry,  This was a duplicate post.
0

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
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 SQL Server 2005

From novice to tech pro — start learning today.