Basic iSPARQL Overview

1. Go to iSPARQL demo page.
2. Click "Ok" in the shown Login form. By default should be shown user name demo and password demo.
3. As result will be shown the iSPARQL home page, with opened tab "QBE" and default graph elements will be shown on the Canvas.
4. The iSPARQL Main Navigation Menu consists of the following items:
   1. iSPARQL: From here you can set your iSPARQL preferences.
   2. File: From here you can Reset the QBE Canvas; open already saved .rq or .isparql file; save / save as the current workflow.
   3. View: From here you can start the Visual Builder or go to the Advanced Query tab.
   4. Tools: From here you can Run Query
   5. Help: contains useful Virtuoso documentation links.
5. QBE tab: This is the tab which is opened by default after successfully login in iSPARQL. It consists of the following items:
   1. Toolbar: The toolbar items have tooltips, so you may take a look at each of them. Also at the very right sight of the toolbar there is Data Source URI field shown. By default its value is the "DefaultGraph" value from the virtuoso ini SPARQL section:
      

      
      http://demo.openlinksw.com/dataspace/person/demo
      

      
      
   2. Canvas: it is situated bellow the toolbar at the left sight of the page.
   3. Max Rows: it is shown under the Canvas. You can set Resultset Max Rows Limit from the drop-down list.
   4. Set Sponger Mode Get data set. This determines if any HTTP GETs are performed against Remote Data Sources.
   5. Set SPARQL Query Type (SELECT, CONSTRUCT, DESCRIBE, INSERT, DELETE) omission as this is a Boolean response style query)
   6. Set SPARQL Endpoint to which queries will be directed.
   7. Set Output (Human readable or Machine readable)
   8. Schemas window: you can find it at the right sight of QBE Canvas. It comes with several useful schemas ready to be loaded.
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6. Advanced tab:
   1. Toolbar: The toolbar items have tooltips, so you may take a look at each of them. In common the items are as follows:
      1. Reset: When clicked, clears the SPARQL Query text-area;
      2. Open: When clicked, opens the Virtuoso WebDAV Browser, from which you can select a file, containing a specific SPARQL query.
      3. Save: When clicked, opens the Virtuoso WebDAV Browser and offers the current query to be saved in a DAV location as file with .rq extension. You can change the extension to .isparql.
      4. Save As : When click, opens the Virtuoso WebDAV Browser and offers the current query to be saved as a file in a DAV location.
      5. Run Query: When click, caused the query to be executed.
      6. Visualize: When click, shows the built graph in the QBE Canvas..
      7. Get from QBE.: When click, gets the query which responds to the graph in the QBE Canvas.
   2. Here you can build your queries setting Graph value, or adding new one from tab Named Graphs
   3. The SPARQL Query area shows your query when you can modified it manual or using the drop-down lists for Prefixes, Templates and Statement Help.
   4. At the bottom of the Working SPARQL Query Area you can change the Get type.
   5. You can also change the Endpoint value manually, or by clicking the arrow at the right sight of the Endpoint field, which will show all the available endpoints you have used in a drop-down list.
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   1. For both QBE and Advanced tabs, bellow their working canvas is shown the Results area which shows the results of executing the Sparql Query. It consists of several sub-tabs:
      1. Result tab: It is opened by default. Shows the found result from executing the SPARQL query.
      2. SPARQL Params tab: Shows the SPARQL Query parameters values.
      3. Response tab: shows the response information of executing the SPARQL query.
      4. Query tab: shows the SPARQL query.
      5. With the blue arrows shown after the Query tab you can navigate among the queries you have already executed.
      6. The graph alike icon with tooltip "Load Query to QBE" when clicked redirects to the QBE tab with built graph in the Working Pane.
      7. The edit document alike icon with tooltip "Load Query to Advanced" when click redirects to the Advanced tab and here you can edit your query.
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