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Posted to users@jena.apache.org by emri mbiemri <em...@gmail.com> on 2021/08/14 08:46:19 UTC
Inserting support a given model
Dear all,
In the given RDF model:
https://github.com/iliriani/Test/blob/main/Notebook.rdf
I am trying to find a way on how to insert with SPARQL a <weight>5</weight> node within an <Association> node where the <class1> is "Notebook" and <class2> is "Evaluation".
Same also, I want to add <weight>2</weight> in the <Association> where <class1> is "Student" and <class2> is "Evaluation" (<class1> and <class2> may be interchangeable) and so the process can continue for all classes.
The problem is:
1. How to specify exactly the <Association> where <class1> is "X" and <class2> is "Y", and
2. insert within the exact <Association> the node <weight> int </weight>
Since I am using Java I need the insert query for one insert then I can loop for all class1 and class2 and add weights.
Thanks a lot.
Re: Inserting support a given model
Posted by Lorenz Buehmann <bu...@informatik.uni-leipzig.de>.
why can't you use a single INSERT query? An INSERT query allows a WHERE part
As mentioned in replies to your your previous mails, look at your data
model as a graph, then convert it to triple patterns which make the
SPARQL query.
On 14.08.21 10:46, emri mbiemri wrote:
> Dear all,
>
> In the given RDF model:
> https://github.com/iliriani/Test/blob/main/Notebook.rdf
>
> I am trying to find a way on how to insert with SPARQL a <weight>5</weight> node within an <Association> node where the <class1> is "Notebook" and <class2> is "Evaluation".
> Same also, I want to add <weight>2</weight> in the <Association> where <class1> is "Student" and <class2> is "Evaluation" (<class1> and <class2> may be interchangeable) and so the process can continue for all classes.
>
> The problem is:
> 1. How to specify exactly the <Association> where <class1> is "X" and <class2> is "Y", and
> 2. insert within the exact <Association> the node <weight> int </weight>
>
> Since I am using Java I need the insert query for one insert then I can loop for all class1 and class2 and add weights.
> Thanks a lot.
>
>
Re: Inserting support a given model
Posted by Andy Seaborne <an...@apache.org>.
Hi,
You'll need to think in triples to decide what triple to add or delete
using SPARQL Update - as in previous email, printing the data out in a
clear triples format will help.
And set the datatype of the literals if you want weight to be a number,
not a string.
Andy
On 14/08/2021 09:46, emri mbiemri wrote:
> Dear all,
>
> In the given RDF model:
> https://github.com/iliriani/Test/blob/main/Notebook.rdf
>
> I am trying to find a way on how to insert with SPARQL a <weight>5</weight> node within an <Association> node where the <class1> is "Notebook" and <class2> is "Evaluation".
> Same also, I want to add <weight>2</weight> in the <Association> where <class1> is "Student" and <class2> is "Evaluation" (<class1> and <class2> may be interchangeable) and so the process can continue for all classes.
>
> The problem is:
> 1. How to specify exactly the <Association> where <class1> is "X" and <class2> is "Y", and
> 2. insert within the exact <Association> the node <weight> int </weight>
>
> Since I am using Java I need the insert query for one insert then I can loop for all class1 and class2 and add weights.
> Thanks a lot.
>
>