Generating schemas - XML SOAP

On 24 Feb, 01:07, "Sam Hobbs"
<sam...@social.rr.com_change_social_to_socal> wrote:
> I need to generate schemas using native C++. If anyone knows of relevant
> samples or such then that might help. I have begun and I hopefully have
> enough of a beginning that I expect to be able to do it with the major
> problem being simply learning about schemas. The code I have so far uses
> MSXML2::IXMLDOMDocument in msxml4.dll and related classes. Relevant articles
> and samples would (as I say) likely help.
>
> The reason I need to generate a schema from code is that I will be doing
> something such as exporting database tables and the tables to be exported
> varies. So instead of creating one huge schema I intend to generate a schema
> that defines just the tables that exist in the XML.

You don't say the sorts of things you have read already, so I don't
know what level you're at already. In case it's helpful, we have a
basic schema introduction at:

http://www.codalogic.com/lmx/xsd-overview.html

There's also the w3c XSD primer at:

http://www.w3.org/TR/xmlschema-0/

On a different note, I was wondering if you had considered doing a
generic XML schema for exporting SQL tables. I'm no great expert on
SQL, but I'd have thought an XML schema for the rows of a SQL table
ought to be quite straight forward. Then a generic piece of code can
export a table, and a generic piece of code can re-constitute it.
Mind you, (discussing with myself!) if that's all you want to do I
guess you might as well just ship around the SQL!

HTH,

Pete Cordell
Codalogic
For XML C++ data binding visit http://www.codalogic.com/lmx/

<usenet@tech-know-ware.com> wrote in message
news:9945e759-e2a8-4e7a-aa39-01381ae36ac3@v3g2000hsc.googlegroups.com...
>
> You don't say the sorts of things you have read already, so I don't
> know what level you're at already. In case it's helpful, we have a
> basic schema introduction at:
>
> http://www.codalogic.com/lmx/xsd-overview.html

Thank you, I will look at it.

> There's also the w3c XSD primer at:
>
> http://www.w3.org/TR/xmlschema-0/

Yes I have definitely seen it. I postponed reading it but now that I have
eliminated the others I will use that one. My other question about
ElementType helped since I now know to ignore the tutorials that use
ElementType. Of course I might postpone using the W3C tutorial in favor of
yours.

> On a different note, I was wondering if you had considered doing a
> generic XML schema for exporting SQL tables.

My situation is a bit different. I said it is like a DB export but it is not
a DB export. It is more like log records in which database changes are
written to a log. So my requirements are more dynamic. The code would be
quite similar of course.

Existing database systems have export capability and all the major database
software can export XML, correct? For me, the data is unique to my
application. In what situation and/or for what software is a custom export
needed?