SQL isnull issue

Hello experts -

I know the answer to this one but I just cannot seem to remember it.

I have created a forumla to concatenate name fields but am having a problem if there is a middle name.  I have placed the isnull command in the appropriate place so if the constituent has no middle name it will be replaced with '', but I cannot seem to figure out how to put the a space between the middle name and the last name if the constituent has a middle name.  For example,
John Doe shows as John Doe but John H. Doe shows as John H.Doe.  I have attached the code.

Thank you.

Lisa
,rtrim(r.reltitle)+' '+RTRIM(r.relfirst)+' '+isnull(rtrim(r.relmiddle),'')+RTRIM(r.rellast) as ContactFullName

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lcallah93Asked:
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Patrick MatthewsCommented:
rtrim(r.reltitle)+' '+RTRIM(r.relfirst)+isnull(rtrim(r.relmiddle) + ' ','')+RTRIM(r.rellast) as ContactFullName
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rajvjaCommented:

,rtrim(r.reltitle)+' '+RTRIM(r.relfirst)+' '+case when r.relmiddle IS null then '' else r.relmiddle + ' ' end +RTRIM(r.rellast) as ContactFullName
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lcallah93Author Commented:
Thank you - both work beautifully!
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Microsoft SQL Server 2008

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