XML
Data exchange & storage ..
Last updated
Data exchange & storage ..
Last updated
XML (eXtensible Markup Language) is a versatile format for structuring and storing data, widely used in various applications and data exchange scenarios. One of the powerful tools for working with XML is XPath (XML Path Language), which provides a way to navigate and extract specific data from XML documents.
XPath is a set of rules used for getting information from an XML document. In XPath, XML documents are treated as trees of nodes. There are several types of nodes; elements, attributes, and texts are some of them. As an example, document, and order are some of the nodes in the sample file.
Among the nodes there are relationships. A node has a parent, zero or more children, siblings, ancestors, and descendants depending on where the other nodes are in the hierarchy. To select a node in an XML document, you should use a path expression relative to a current node.
The "Get Data from XML" step in Pentaho Data Integration extracts data from XML files using XPath expressions. It converts hierarchical XML structures into tabular formats suitable for database loading and downstream processing.
This component is essential when integrating systems that use XML for data exchange, allowing ETL developers to precisely target specific elements within complex documents. The step supports dynamic processing through parameter substitution, enabling adaptable data pipelines that can handle varied XML sources.
