hope this one helps u
SELECT name,
substring(name,CHARINDEX(' ', name)+ 1 ,len(name)) as Secondnamepart,
substring(name,CHARINDEX(' ', name)+ 1 ,charindex(' ',substring(name,CHARINDEX(' ', name)+ 1,len(name))))
+' '+ substring(name,1,1)+ '.' As NameTag
FROM test