Xquery updating function
In this canonical mapping, user-defined data-type attributes are mapped to XML elements. It takes as arguments an element name, an optional collection of attributes for the element, and zero or more additional arguments that make up the element content.It returns an determine whether or not a runtime check is made of the generated attributes, to see if any of them specify a schema location that corresponds to an XML schema that is registered with Oracle XML DB, and, if so, to try to generate XML schema-based XML data accordingly. This means, in particular, that if you use a string literal to specify an XML schema location attribute value, then a (compile-time) check will be made, and, if appropriate, XML schema-based data will be generated accordingly.CREATE TABLE hr.dependents (id NUMBER(4) PRIMARY KEY, employee_id NUMBER(4), name VARCHAR2(10)); Table created.
This chapter contains these topics: You can generate XML using XSQL Pages Publishing Framework, also known as XSQL Servlet.
This is described in Generating XML Using XSQL Pages Publishing Framework.
is used to add XML-schema location references, and the target XML schema has not yet been registered with Oracle XML DB, then the XML data generated will not be XML schema-based.
If the XML schema is subsequently registered, then XML data generated thereafter will also characters are generated.
If you know, for example, that the XML data being generated is well-formed, then you can save some processing time by inhibiting escaping.
You can do that by specifying the keyword The XML Schema standard specifies that dates and timestamps in XML data be in standard formats.
For instance when generating a page of XML or HTML data, you can restrict the number of rows converted to XML and then in subsequent calls, you can get the next set of rows and so on. It is an error to call this procedure on a context handle created by function , and so on, which must be preceded by an escape character.
It is expensive to scan the character data to replace the special characters, particularly if it involves a lot of data.
This chapter describes Oracle XML DB features for generating (constructing) XML data from relational data in the database.