sql server 2008 - T-SQL substring - separating first and last name

Question

I have a column which has FirstName and LastName together. I'm writing a report to separate the FirstName And LastName. How do I get the FirstName and LastName separated in T-SQL?

Answer 1

Assuming the FirstName is all of the characters up to the first space:

SELECT
  SUBSTRING(username, 1, CHARINDEX(' ', username) - 1) AS FirstName,
  SUBSTRING(username, CHARINDEX(' ', username) + 1, LEN(username)) AS LastName
FROM
  whereever