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Hi,
Im the newbie that asked about constraints lately. In my case I'm
creating a file to exchange statistic data about tourism in some hotels
each day and from which countries every month, so I want to make sure
that they do not repeat a data entry for the same country and the same
day. As I come from relational databases a primary key is what comes
naturally to my mind.
Anyway is just to make a check, I won't use it as the final storage
which will be a relational database. It's just to make easy the exchange
of data and the validation of the information.
Priti Patil wrote:
>Hi all,
>
>I am a research student. I am working on the project which will convert
>identity constraints specified in XML schema to relational keys while
>mapping XML to relations.
>
>As a curiosity to see, how important are the identity constraints from
>the perspective of XML application developer, I thought that let me see
>how many people are using XML schemas which has key, keyref. For that, I
>surveyed the schemas which are provided in the repository of XML.org.
>But none of the schema contains the use of integrity constraints.
>
>Thus question which come into my mind is that Are people really using
>Identity constraints specified in XML schema?
>
>Can any one tell me answer to this?
>
>Thanks and Regards,
>Priti Patil.
>
>
>
>
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