Path descriptors - PowerPoint PPT Presentation

XML Query Languages Salman Azhar

XML Query Languages Salman Azhar. XPATH XQUERY. These slides use some figures, definitions, and explanations from Elmasri-Navathe’s Fundamentals of Database Systems and Molina-Ullman-Widom’s Database Systems. XPATH and XQUERY. Two query language to search in XML documents XPATH

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457 views • 31 slides

XML Query Languages Salman Azhar

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363 views • 31 slides

XPath

XPath. Path Expressions Conditions. Paths in XML Documents. XPath is a language for describing paths in XML documents. Really think of the semistructured data graph and its paths. Example DTD. &lt;!DOCTYPE BARS [ &lt;!ELEMENT BARS (BAR*, BEER*)&gt; &lt;!ELEMENT BAR (PRICE+)&gt;

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348 views • 18 slides

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