Can't see the forest for the trees

I have the following table (3500 rows)

Some (most) first name fields also contain middle name or initial


Last Name        First Name                          Middle Name                       Address 1
Peone               Nicholas Kane                            NULL                                      1435 Emma Lane
Russo               Joseph J.                                    NULL                                       347 6th Ave., #3
McDonnell      Sarah Wimsatt                            NULL                                       180 L St., #2
Carvalho              Michael Paul                            NULL                                      2168 Major Loring Way
Gildea              Caitlin                                   Elizabeth                              549 Columbus Ave., #4
Lowe              Justin J.                                   NULL                                     AGO-CPD
Welch             William M.                           NULL                                     25 Meadowbrook Rd.
Adams             Sandra                                   NULL      57 Fitchburg Rd.


I am trying to extract the middle name/initial an stuff it into the middle name field.

Once I know that is correct I'll truncate first name at the space

This is the code I am using



       update newlawyers2011
            set middle_name = substring(first_name,
                  (select patindex('% %',rtrim(first_name))) + 1,
                  len(rtrim(first_name))
      where (select patindex('% %',rtrim(first_name)) > 0

Fails with error-

Server: Msg 156, Level 15, State 1, Line 3
Incorrect syntax near the keyword 'where'.
Server: Msg 170, Level 15, State 1, Line 3
Line 3: Incorrect syntax near '>'.


I have been staring at this for 2 hours and I can't read the letters any more.
Any help would be appreciated
Larry RungrenDirector of TechnologyAsked:
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BuggyCoderCommented:
Do This:-

update newlawyers2011 set middle_name =
substring(first_name,patindex('% %',rtrim(first_name)) + 1,len(rtrim(first_name))
where (patindex('% %',rtrim(first_name)) > 0
0

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Larry RungrenDirector of TechnologyAuthor Commented:
Now get this error


Server: Msg 156, Level 15, State 1, Line 3
Incorrect syntax near the keyword 'where'.
0
TempDBACommented:
Little modification to BuggyCoder solution

update newlawyers2011 set middle_name =
substring(first_name,patindex('% %',rtrim(first_name)) + 1,len(rtrim(first_name))
where (patindex('% %',rtrim(first_name))) > 0
0
BuggyCoderCommented:
Thanks TempDBA i generally mess up with braces...
You are a life saver....
:-)
0
Larry RungrenDirector of TechnologyAuthor Commented:
Thanks saved the day
0
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