How to exclude row with date

I need to exclude data rows that have same auth_no when the discharge date is not null in any row.
So in the example below, all the rows with auth_no = 200 should be excluded because the last row has a discharge date.  The report should only display the first row of data where auth_no = 100.   Any sql help would be appreciated.

Service Date      auth_no      Discharge
1/5/2011      100      NULL
1/14/2011      200      NULL    --should be exluded
1/18/2011      200      NULL    --should be excluded
1/20/2011      200      NULL    --should be excluded
2/4/2011      200      1/22/2011  -- all auth_no = 200 should be excluded as discharge date is not null in this row.
Who is Participating?
Ephraim WangoyaCommented:
;with CTE
( select auth_no, max(Discharge) Discharge, COUNT(auth_no) DUP
  from table1
  group by auth_no
 select * 
 from table1 A
 where exists ( select 1 
                from CTE
                where auth_no = A.auth_no
                and DUP =1
                and Discharge is null)

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Alpesh PatelAssistant ConsultantCommented:
Select * From Table where  auth_no <> 200
lcalabroAuthor Commented:
thank you!
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