Oracle XML DB uses annotated XML schemas as metadata. You can access XDBSchema.xsd at Oracle XML DB Repository location /sys/schemas/PUBLIC//xdb/XDBSchema.xsd. This is the XML schema for Oracle XML DB XML schemas. To be registered with Oracle XML DB, an XML schema must conform to the the root XML Schema, XDBSchema.xsd. Oracle XML DB takes advantage of the strong typing and other features of XML Schema to process XML database data safely and efficiently. You must register an XML schema with Oracle XML DB in order to use it with XML data that is stored in the database. XML schemas are stored in Oracle XML DB as XMLType instances, just like the XML documents that reference them. Oracle XML DB supports registering XML schemas, validating documents against an XML schema, generating XML schemas from SQL object types, mapping from XML Schema to SQL, creating and querying XML Schema-based tables, views, and columns, and automatically inserting data when XML Schema-based documents are inserted into Oracle XML DB Repository.
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