SQL: parse the first, middle and last name from a fullname field

Question

How do I parse the first, middle, and last name out of a fullname field with SQL?

I need to try to match up on names that are not a direct match on full name. I\'d

Answer 1

This query is working fine.

SELECT name
    ,Ltrim(SubString(name, 1, Isnull(Nullif(CHARINDEX(' ', name), 0), 1000))) AS FirstName
    ,Ltrim(SUBSTRING(name, CharIndex(' ', name), CASE 
                WHEN (CHARINDEX(' ', name, CHARINDEX(' ', name) + 1) - CHARINDEX(' ', name)) <= 0
                    THEN 0
                ELSE CHARINDEX(' ', name, CHARINDEX(' ', name) + 1) - CHARINDEX(' ', name)
                END)) AS MiddleName
    ,Ltrim(SUBSTRING(name, Isnull(Nullif(CHARINDEX(' ', name, Charindex(' ', name) + 1), 0), CHARINDEX(' ', name)), CASE 
                WHEN Charindex(' ', name) = 0
                    THEN 0
                ELSE LEN(name)
                END)) AS LastName
FROM yourtableName