How to deserialize data records serialized using FOR XML AUTO in T-SQL?

Question

In my Microsoft SQL Server 2005 database, I have data in a column WorkingDays, for example:

<WorkingDays>
  <Day>2011-05-05</Day>
  <Day>2011-05-06</Day>
</WorkingDays>

How to deserialize them in a T-SQL query in format DateTime?

Answer 1

Try something like this:

DECLARE @TEST TABLE(ID INT IDENTITY, XmlContent XML)

INSERT INTO @TEST(XmlContent) VALUES('<WorkingDays>
  <Day>2011-05-05</Day>
  <Day>2011-05-06</Day>
</WorkingDays>')


SELECT 
    ID,
    WD.DAYS.value('(.)[1]', 'datetime') AS 'Day'
FROM 
    @TEST
CROSS APPLY 
    XmlContent.nodes('/WorkingDays/Day') AS WD(Days)

This gives me the conclusion:

ID    Day
1     2011-05-05 00:00:00.000
1     2011-05-06 00:00:00.000