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How does explicit mode produce an XML document?
In order for EXPLICIT mode to produce the XML document, the rowset must have a specific format. This requires that you write the SELECT query to produce the rowset, the universal table, with a specific format so the processing logic can then produce the XML you want.
What can a Stax pull parser do for XML?
A StAX pull parser can filter XML documents such that elements unnecessary to the client can be ignored, and it can support XML views of non-XML data. The StAX specification defines a number of use cases for the API: Simple Object Access Protocol (SOAP) message processing
When to use streaming model for XML processing?
Streaming models for XML processing are particularly useful when your application has strict memory limitations, as with a cellphone running the Java Platform, Micro Edition (Java ME platform), or when your application needs to process several requests simultaneously, as with an application server.
Can you use path mode instead of explicit mode?
You may find that Using PATH Mode with nesting is a simpler alternative to writing EXPLICIT mode queries. Because you describe the XML you want as part of the query in EXPLICIT mode, you must ensure that the generated XML is well formed and valid.
Which is an example of an explicit mode query?
For example, you can control whether a column appears as element or attribute content, or whether a column is used only to order the result, rather than appearing in the generated XML. For an example of how to write a query using FOR XML EXPLICIT, see Writing an EXPLICIT mode query .
How to use an explicit column in XML?
Using FOR XML EXPLICIT 1 Tag column This is the first column specified in the select list. The Tag column stores the tag number of the current… 2 Parent column This column stores the tag number for the parent of the current element. If the value in this column is… More
What are the optional directives in for XML explicit?
The optional directives supported by FOR XML EXPLICIT allow you to configure the treatment of individual columns. For example, you can control whether a column appears as element or attribute content, or whether a column is used only to order the result, rather than appearing in the generated XML.
What do I need to use explicit mode in SQL?
First, the query must produce the following two metadata columns: The first column must provide the tag number, integer type, of the current element, and the column name must be Tag. Your query must provide a unique tag number for each element that will be constructed from the rowset.
How is the XML hierarchy determined in SQL Server?
The XML hierarchy is determined as shown in the following: The first row specifies Tag value 1 and Parent value NULL. Therefore, the corresponding element, < Customer > element, is added as a top-level element in the XML. The second row identifies Tag value 2 and Parent value 1.