Query data
This guide describes how the application dataset can be queried using SPARQL.
The end-user application dataset can be queried using SPARQL 1.1 endpoint, which is available via link in the navigation bar.
All forms of SPARQL queries are allowed; SPARQL updates are not allowed. A result limit might apply.
For DESCRIBE and CONSTRUCT results, it is possible to switch the
layout mode using a button above to the results.
Saving queries
If you want to save the query string which is currently in the editor, click the Save button underneath the editor form. A document creation form will open where the query string will be filled in, you only need to enter the titles of the query and its document. You can then access the query by navigating to the query container via the dropdown in the breadcrumb bar.
You will not be able to save invalid query strings.
Saving charts
The SPARQL editor includes an interactive chart pane which can be used to visualize the query results. You can change the chart type, select its category and one or more series.
The chart pane supports both graph query (CONSTRUCT, DESCRIBE) and result set query (SELECT, ASK) results. For graph results, the category and series are
rendered from resource properties; for result sets, they are rendered from variable
names.
If you want to save the chart with properties which are currently selected, click the Save button underneath the chart pane. That will open two document creation forms: one for the query, and the second one for the chart (as the chart depends on the query). The query string and chart properties will be filled in, you only need to enter the titles of the query and the chart and their document. You can then access the chart by navigating to the chart container via the dropdown in the breadcrumb bar.
You will not be able to save invalid query strings.