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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>The SQL standard never defines indexing strategies. Not for
relational data nor for XML.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>All vendors provide indexing mechanisms.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Michael<o:p></o:p></span></p>
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color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:windowtext'>From:</span></b><span style='font-size:10.0pt;font-family:
"Tahoma","sans-serif";color:windowtext'> talk-bounces@x-query.com
[mailto:talk-bounces@x-query.com] <b>On Behalf Of </b>David A. Lee<br>
<b>Sent:</b> Monday, June 15, 2009 4:51 PM<br>
<b>To:</b> Brian Maso<br>
<b>Cc:</b> talk@x-query.com<br>
<b>Subject:</b> Re: [xquery-talk] XQuery and databases - XQuery 2.0<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I believe oracle's implementation lets you do that, but its
not "standard".<br>
<br>
<br>
<br>
<o:p></o:p></p>
<pre>David A. Lee<o:p></o:p></pre><pre><a href="mailto:dlee@calldei.com">dlee@calldei.com</a> <o:p></o:p></pre><pre><a
href="http://www.calldei.com">http://www.calldei.com</a><o:p></o:p></pre><pre><a
href="http://www.xmlsh.org">http://www.xmlsh.org</a><o:p></o:p></pre><pre>812-482-5224<o:p></o:p></pre>
<p class=MsoNormal><br>
<br>
Brian Maso wrote: <o:p></o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'>Yea, I knew about SQL/XML. I
was thinking more about intra-column indexing -- so if I have an XML column I
could write an efficient WHERE clause on the value of a specific descendant
element value. I don't believe SQL/XML defines a way to ddefine indexes using,
say, an XPath expression.<br>
<br>
Best regards,<br>
Brian Maso<o:p></o:p></p>
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<p class=MsoNormal>On Mon, Jun 15, 2009 at 2:19 PM, Pavel Minaev <<a
href="mailto:int19h@gmail.com">int19h@gmail.com</a>> wrote:<o:p></o:p></p>
<p class=MsoNormal>On Mon, Jun 15, 2009 at 2:10 PM, Brian Maso<<a
href="mailto:brian@blumenfeld-maso.com">brian@blumenfeld-maso.com</a>>
wrote:<br>
> I had heard that future versions of the SQL standard are to bring XML in
to<br>
> SQL -- basically make non-validated XML nodes as valid column types and
add<br>
> intra-XML indexing.<br>
<br>
It's called SQL/XML, and it has been there since SQL-2003:<br>
<br>
<a href="http://en.wikipedia.org/wiki/SQL/XML" target="_blank">http://en.wikipedia.org/wiki/SQL/XML</a><br>
_______________________________________________<br>
<a href="mailto:talk@x-query.com">talk@x-query.com</a><br>
<a href="http://x-query.com/mailman/listinfo/talk" target="_blank">http://x-query.com/mailman/listinfo/talk</a><o:p></o:p></p>
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<p class=MsoNormal><br>
<br>
<o:p></o:p></p>
<pre><o:p> </o:p></pre><pre style='text-align:center'>
<hr size=4 width="90%" align=center>
</pre><pre><o:p> </o:p></pre><pre>_______________________________________________<o:p></o:p></pre><pre><a
href="mailto:talk@x-query.com">talk@x-query.com</a><o:p></o:p></pre><pre><a
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