SQL 2005 Xpath query help needed

Hi experts,

I need some help with making a query with a SQL 2005 XML column.

I have a table called EventLog, and this table has a column Details that is of type XML and contains details about an event log entry. Different event log entries may have different details. The XML for some of the entries looks like this:

(simplified)

<EventDetails>
  <item>
    <key>
      <string>UserID</string>
    </key>
    <value>
      <string>1</string>
    </value>
  </item>
  <item>
    <key>
      <string>InvoiceID</string>
    </key>
    <value>
      <string>13</string>
    </value>
  </item>
</EventDetails>

This one has two elements, UserID and InvoiceID, and their respective values.

What I need to do is to write a SQL query that will return * FROM EventLog WHERE the Details column has a InvoiceID element and its value is N (e.g. 123). This way I can find all event log entries that are somehow related to invoice 123.

Thanks in advance!
LVL 1
kerznerAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

kerznerAuthor Commented:
OK, nobody here can write that xpath query!?
0
Anthony PerkinsCommented:
SELECT      *
FROM      EventLog
WHERE      Details.exist('/EventDetails/item/key[string="InvoiceID"]') = 1
      AND Details.exist('/EventDetails/item[value="13"]') = 1
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
XML

From novice to tech pro — start learning today.