XML
を使用してこれを行います
SELECT col1,
Split.a.value('.', 'VARCHAR(100)') col2
FROM (SELECT col1,
col2,
Cast ('<M>' + Replace(col2, ' ', '</M><M>') + '</M>' AS XML) AS Data
FROM Yourtable) AS A
CROSS APPLY Data.nodes ('/M') AS Split(a)