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| A method for identifying XML elements and attributes that have the same name, but different meanings. For example, ADDRESS is a tag that can be used to identify totally different data elements such as “street address” and “IP address.” |
| An XML Namespace is a Prefix |
| An XML namespace uses a URL as a prefix in front of the “local name.” The combination of URL and local name makes the element or attribute name unique. The URL is used only as a way to create a unique prefix and does not have to resolve to a real page on the Internet. However, a document may be stored where the URL points that provides information about the namespace |
| Since element names in XML are not predefined, a name conflict will occur when two different documents use the same element names. |
| Name Conflicts |
| Since element names in XML are not predefined, a name conflict will occur when two different documents use the same element names. |
| This XML document carries details about an associate: |
| <?xml version=”1.0″ encoding=”ISO-8859-1″?> <ebiz> <details> <name>Dharmedra Das</name> <address>D 210, sector 13</address> <city>Noida</city> <state>UP</state> <pin>201301</pin> </details> </ebiz> |
| Click here to view the file. |
| This XML document carries details about a book: |
| <?xml version=”1.0″ encoding=”ISO-8859-1″?> <ebiz> <details> <title>XML Tutorial</title> <author>Ravish Tiwari</author> <date>29/04/2007</date> <ISBN>1-23343-235-2</ISBN> <publisher>eBIZ.com Publication</publisher> </details> </ebiz> |
| Click here to view the file. |
| If these two XML documents were added together, there would be an element name conflict because both documents contain a <details> element with different content and definition. |
| This XML document carries details about an associate: |
| <?xml version=”1.0″ encoding=”ISO-8859-1″?> <associate:ebiz xmlns:associate=”http://www.ebizel.com/”> <associate:details> <associate:name>Dharmedra Das</associate:name> <associate:address>D 210, sector 13</associate:address> <associate:city>Noida</associate:city> <associate:state>UP</associate:state> <associate:pin>201301</associate:pin> </associate:details> </associate:ebiz> |
| This XML document carries details about a book: |
| <?xml version=”1.0″ encoding=”ISO-8859-1″?> <tutorial:ebiz xmlns:tutorial=”http://education.ebizel.com/”> <tutorial:details> <tutorial:title>XML Tutorial</tutorial:title> <tutorial:author>Ravish Tiwari</tutorial:author> <tutorial:date>29/04/2007</tutorial:date> <tutorial:ISBN>1-23343-235-2</tutorial:ISBN> <tutorial:publisher>eBIZ.com Publication</tutorial:publisher> </tutorial:details> </tutorial:ebiz> |
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