[Rdfapi-php-interest] RDQL problem: null values?

[Rod P. <ro...@ro...>]

Hi all,

I am using an RDQL query to return all instances of a class, with
corresponding property values.

Example:

---

SELECT		*

WHERE			(?x,<tst:clientName>,?a)
			(?x,<tst:clientEmail>,?b)
			(?x,<tst:clientTelephone>,?c)
			(?x,<rdf:type>,<tst:Client>)

USING			tst for <http://sw.intera.si/testont#>
			rdf for
<http://www.w3.org/1999/02/22-rdf-syntax-ns#>

---

Now, the problem occurs when some instances don't have some property value
defined. Only instances that have all three property values defined will be
returned.

Is it possible to return all instances of a class and (e.g.) get null values
for property values they don't have defined?

I guess you could say that I'm looking for an RDQL query that does the same
as "SELECT * FROM table" in SQL. 

Thank you for your time.
 
----------
Rod Petrovic
 
ro...@ro...
www.rodpetrovic.com
+381 65 317 317 3
 


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