About: VirtTipsAndTricksGuideShortenLongURIs

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Date Created	2017-06-13 05:46:20.283753(xsd:dateTime)
Date Modified	2017-06-13 05:46:20.283753(xsd:dateTime)
label	VirtTipsAndTricksGuideShortenLongURIs
maker	WebDAV System Administrator owiki
Title	VirtTipsAndTricksGuideShortenLongURIs
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content	%META:TOPICPARENT{name="VirtTipsAndTricksGuide"}% ---+ What is the ShortenLongURIs Virtuoso configuration parameter ---++What? The <code>ShortenLongURIs</code> parameter is a Virtuoso configuration setting to shorten extremely long URIs in datasets when loading with the RDF Bulk Loader. ---++Why? Some RDF datasets have long URIs that exceed the Virtuoso internal maximum size of 1900 bytes and thus need to be shortened to avoid errors like: <verbatim> SR133: Can not set NULL to not nullable column 'DB.DBA.RDF_QUAD.S' (or .O, or .P) </verbatim> which has been seen loading some of the DBpedia 3.7 datasets, for example. ---++How? The Virtuoso <code>ShortenLongURIs</code> parameter needs to be set in the [[[http://docs.openlinksw.com/virtuoso/databaseadmsrv.html#ini_SPARQL][SPARQL]]] section of the Virtuoso configuration file (virtuoso.ini by default) and restart the Virtuoso Server. <verbatim> [SPARQL] . . . ShortenLongURIs = 1 . . . </verbatim> <b>Note:</b> The <code>ShortenLongURIs</code> parameter is only in the Virtuoso 06.03.3131+ commercial builds, at the time of writing it is not included in the open source 6.1.4 archives but will be in the next 6.1.5 release. A patch to enable this feature is however available from the [[http://sourceforge.net/tracker/?func=detail&aid=3496331&group_id=161622&atid=820576][Virtuso patches page on source forge]], which can be applied to a 6.1.4 archive from source forge and the Virtuoso server binary rebuilt. ---++Related * [[VirtTipsAndTricksGuide][Virtuoso Tips and Tricks Collection]] * [[http://docs.openlinksw.com/virtuoso/rdfinsertmethods.html][RDF Insert Methods in Virtuoso]]
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atom:title	VirtTipsAndTricksGuideShortenLongURIs
links to	http://docs.openlinksw.com/virtuoso/rdfinsertmethods.html http://docs.openlinksw.com/virtuoso/databaseadmsrv.html#ini_SPARQL VirtTipsAndTricksGuide http://vos.openlinksw.com/dataspace/%28NULL%29/wiki/VOS/ShortenLongURIs http://sourceforge.net/tracker/?func=detail&aid=3496331&group_id=161622&atid=820576
atom:source	owiki's Wiki
atom:author	WebDAV System Administrator
atom:published	2017-06-13T05:46:20Z
atom:updated	2017-06-13T05:46:20Z
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