MS SQL - Need to update a column in one table based off of a left outer join

Below is a query I run to find data from two tables.   There is a nchar(10) column in the IMFiledata table called "imported" that I want to update with "Yes" when the query finds records that match but I've been unsuccessful in working an update clause into the query.  

select A.Custbox, A.tempid, A.DEPT, A.boxtype,
       B.CLIENT_NBR, B.MATTER_DESC, B.CLIENT_NAME, B.LAWYER_1, B.MATTER_NBR, B.CLOSE_DATE
from NDXData A
left outer join IMFiledata B on A.CustBox =B.skpboxnbr
where A.Custbox <> '' and b.FILE_STATUS <>'OUT' and A.DEPT <>''

Any ideas?

Thanks.
RavenTimAsked:
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Walter PadrónCommented:
If you use an left outer join you includes the non-matching rows too

UPDATE IMFiledata 
SET imported= 'YES'
FROM 
(
    select A.Custbox, A.tempid, A.DEPT, A.boxtype,
           B.CLIENT_NBR, B.MATTER_DESC, B.CLIENT_NAME, B.LAWYER_1, B.MATTER_NBR, B.CLOSE_DATE
    from NDXData A
    join IMFiledata B on A.CustBox =B.skpboxnbr
    where A.Custbox <> '' and b.FILE_STATUS <>'OUT' and A.DEPT <>''
) AS C
JOIN IMFileData D ON C.skpboxnbr = D.skpboxnbr

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RavenTimAuthor Commented:
Thanks Walter!
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Microsoft SQL Server 2008

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