SAS(R) 9.2 XML LIBNAME Engine: User's Guide
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| Getting Started with the XML Engine |
Frequently Asked Questions
| Is the XML Engine a DOM or SAX Application? |
The XML engine uses a Simple API for XML (SAX) model, not a Document Object Model (DOM). SAX does not provide a random-access lookup to the document's contents; it scans the document sequentially and presents each item to the application one item at a time.
| Does the XML Engine Validate an XML Document? |
The XML engine does not validate an input XML document. The engine assumes that the data passed to it is in valid, well-formed XML markup. Because the engine does not use a DTD (Document Type Definition) or SCHEMA, there is nothing to validate against.
| What Is the Difference between Using the XML Engine and the ODS MARKUP Destination? |
Typically, you use the XML engine to transport data, while the ODS MARKUP destination is used to create XML from SAS output. The XML engine creates and reads XML documents; ODS MARKUP creates but does not read XML documents.
| Why Do I Get Errors When Importing XML Documents Not Created with SAS? |
The XML engine reads only files that conform to the markup types supported in the XMLTYPE= LIBNAME statement option. Attempting to import free-form XML documents that do not conform to the specifications required by the supported markup types will generate errors. To successfully import files that do not conform to the XMLTYPE= markup types, you can create a separate XML document, called an XMLMap. The XMLMap syntax tells the XML engine how to interpret the XML markup into a SAS data set or data sets, variables (columns), and observations (rows).
See Importing XML Documents, Importing XML Documents Using an XMLMap, LIBNAME Statement Syntax, and Creating an XMLMap.
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