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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
0
RavenTim
Asked:
RavenTim
1 Solution
 
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
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