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In SGML, HTML and XML documents, the logical constructs known as character data and attribute values consist of sequences of characters, in which each character can manifest directly (representing itself), or can be represented by a series of characters called a character reference, of which there are two types: a numeric character reference and a character entity reference.
The qualified name of an element. It must conform to naming rules of XML objects. (i.e. must start with a letter or underscore, case-sensitive, cannot start with the letters xml(in any case), can contain letters, digits, hyphens, underscores, and periods, cannot contain spaces.) Expanded-QName The fully qualified name of an element.
Again the properties include the attribute name and target namespace. The attribute type constrains the values that the attribute may take. An attribute declaration may also include a default value or a fixed value (which is then the only value the attribute may take.) Simple and complex types. These are described in the following section ...
In XML, an attribute is a markup construct consisting of a name/value pair that exists within a start-tag or empty-element tag. Markup languages, such as HTML and XML , use attributes to describe data and the formatting of data.
Mapping Relational Data to XML: Schema mapping is a critical process that defines how relational tables correspond to XML elements and attributes. XQuery Processing: Querying XML data extracted from relational databases may involve XQuery, a language designed for querying and transforming XML. One of the most common scenario involves converting ...
Code that uses this iterator can test the current item (to tell, for example, whether it is a start-tag or end-tag, or text), and inspect its attributes (local name, namespace, values of XML attributes, value of text, etc.), and can also move the iterator to the next item. The code can thus extract information from the document as it traverses it.
The most common standard that Naming and Design Rules are created on is XML Schema. For example, the use of upper camel case data element names is a convention used in many standard but is not specified by the XML Schema specification. Naming and Design Rules have become an important aspect of each organizations data exchange standards.
SQL/XML or XML-Related Specifications is part 14 of the Structured Query Language (SQL) specification. In addition to the traditional predefined SQL data types like NUMERIC, CHAR, TIMESTAMP, ... it introduces the predefined data type XML together with constructors, several routines, functions, and XML-to-SQL data type mappings to support ...