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Re: key constraint question

• To: Jeff Lowery <Jeff.Lowery@c...>
• Subject: Re: key constraint question
• From: "Chiusano Joseph" <chiusano_joseph@b...>
• Date: Sat, 17 May 2003 15:18:38 -0400
• Cc: "'Bill Riegel'" <BRiegel@l...>, "'xml-dev@l...'" <xml-dev@l...>
• Organization: BAH
• References: <4827EC373E03DB44AC2AB3900430896B672251@c...>

I might be missing something...how does that ensure there is a TableB
with the relationship of "needed"? Couldn't the one occurrence of TableB
still have an attribute value of "optional"?

Jeff Lowery wrote:
> 
> Whoops...  You'll need a derived restricted Table B for the secondaryB,
> minus the secondaryB.
> 
> I hope that's it.
> 
> > <?xml version="1.0" encoding="UTF-8"?>
> > <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
> > elementFormDefault="qualified" attributeFormDefault="unqualified">
> >   <xs:element name="TableA">
> >     <xs:complexType>
> >       <xs:sequence>
> >         <xs:element name="primaryKey"/>
> >         <xs:element name="TableB" type="TableB_Type"
> > minOccurs="1"/>   <!---->
> >       </xs:sequence>
> >     </xs:complexType>
> >   </xs:element>
> >   <xs:complexType name="TableB_Type">
> >      <xs:sequence>
> >       <xs:element name="primaryKey" type="xs:string"/>
> >       <xs:element name="secondaryB" type="TableB_Type"
> > minOccurs="0"/> <!---->
> >     </xs:sequence>
> >     <xs:attribute name="relationship">
> >                 <xs:simpleType>
> >                   <xs:restriction base="xs:token">
> >                     <xs:pattern value="needed|optional"/>
> >                   </xs:restriction>
> >                 </xs:simpleType>
> >     </xs:attribute>
> >   </xs:complexType>
> > </xs:schema>
> >
> >
> 
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url:www.bah.com
org:Booz | Allen | Hamilton;IT Digital Strategies Team
adr:;;8283 Greensboro Drive;McLean;VA;22012;
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email;internet:chiusano_joseph@b...
title:Senior Consultant
fn:Joseph M. Chiusano
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• References:
  • RE: key constraint question
    • From: Jeff Lowery <Jeff.Lowery@c...>

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