Databases
StackOverflow2013
Postsdbo
POHow to do XML cross referencing?
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POHow to do XML cross referencing?
    primarykey
    data
    text
    <p>I'm trying to do element cross reference in XML without success. Here's my schema:</p> <pre><code>&lt;?xml version="1.0"?&gt; &lt;xs:schema version="1.0" xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified"&gt; &lt;xs:complexType name="guestType"&gt; &lt;xs:sequence&gt; &lt;xs:element name="name" type="xs:string"/&gt; &lt;xs:element name="address" type="addressType"/&gt; &lt;/xs:sequence&gt; &lt;xs:attribute name="id" type="xs:ID"/&gt; &lt;xs:attribute name="ref" type="xs:IDREF"/&gt; &lt;/xs:complexType&gt; &lt;xs:complexType name="addressType"&gt; &lt;xs:sequence&gt; &lt;xs:element name="houseNumber" type="xs:integer"/&gt; &lt;xs:element name="roadName" type="xs:string"/&gt; &lt;/xs:sequence&gt; &lt;xs:attribute name="id" type="xs:ID" /&gt; &lt;xs:attribute name="ref" type="xs:IDREF"/&gt; &lt;/xs:complexType&gt; &lt;xs:element name="event"&gt; &lt;xs:complexType&gt; &lt;xs:sequence&gt; &lt;xs:element name="time" type="xs:time"/&gt; &lt;xs:choice maxOccurs="unbounded"&gt; &lt;xs:element name="guest" type="guestType"/&gt; &lt;/xs:choice&gt; &lt;/xs:sequence&gt; &lt;/xs:complexType&gt; &lt;/xs:element&gt; &lt;/xs:schema&gt; </code></pre> <p>The code for the XML document is:</p> <pre><code>&lt;eventxmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xsi:noNamespaceSchemaLocation='src/tests/newXmlSchema.xsd'&gt; &lt;time&gt;14:00:00&lt;/time&gt; &lt;guest id="1"&gt; &lt;name&gt;John&lt;/name&gt; &lt;address id="add1"&gt; &lt;houseNumber&gt;222&lt;/houseNumber&gt; &lt;roadName&gt;Meat Street&lt;/roadName&gt; &lt;/address&gt; &lt;/guest&gt; &lt;guest id="2"&gt; &lt;name&gt;Henry&lt;/name&gt; &lt;address ref="add1"/&gt; &lt;/guest&gt; &lt;/event&gt; </code></pre> <p>I'm using Netbeans to validate. The validation throws an error in:</p> <pre><code>&lt;address ref="add1"/&gt; </code></pre> <p>The error is:</p> <pre><code>cvc-complex-type.2.4.b: The content of element 'address' is not complete. One of '{houseNumber}' is expected. </code></pre> <p>What am I doing wrong? Thank you in advance.</p> <p>PS. I couldn't find any previous question with something as basic as this. The others were using XLS, is this what I should be using?</p>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. USRicardo
    plurals
    1. PL
      singulars
      1. LTLinked
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. COYou haven't made any of the sub-elements optional. The way your schema is laid out, your sequence `{houseNumber, roadName}` is mandatory.
      singulars
      1. POHow to do XML cross referencing?
      1. USdcsohl
    2. COassuming you'll resolve the 'ref' to 'id' in your own code, you could make address a sequence of choices. 1st sequence is the normal content with ID attribute, 2nd sequence would be the 'REF' attribute without child elements.
      singulars
      1. POHow to do XML cross referencing?
      1. USMarvin Smit
    3. CO@dcsohl I tried adding minOccurs="0" and maxOccurs="unbounded" to make them optional but it didn't work. Is there any other way?
      singulars
      1. POHow to do XML cross referencing?
      1. USRicardo
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload