XML Publishing | XML Data Type | Teradata Vantage - 17.10 - XML Publishing - Advanced SQL Engine - Teradata Database

Teradata Vantageā„¢ - XML Data Type

Product
Advanced SQL Engine
Teradata Database
Release Number
17.10
Published
July 2021
Last Update
2021-07-28
Content Type
Programming Reference
Publication ID
B035-1140-171K
Language
English (United States)
Last Update
2021-07-28

XML publishing is the process of formatting the results of an SQL query as XML. SQL query results are mapped to an XML format according to a mapping specification provided by the user.

To publish XML from Vantage, perform the following tasks:

  1. Define the SQL query whose output you want to publish as XML.
  2. Define a mapping from the SQL query results to the desired XML structure.
  3. Store the mapping so that it can be easily referenced, for example, in a stylesheet repository table.
  4. Call one of the XML publishing stored procedures (XMLPUBLISH or XMLPUBLISH_STREAM) with the following arguments:
    • The SQL query you defined in step 1
    • The mapping you saved in step 3

You define the XML publishing mapping as an XSLT stylesheet that defines a transformation from the canonical representation of the query result to the desired XML output structure.

If you pass NULL as the Xslt (mapping definition) argument to XMLPUBLISH or XMLPUBLISH_STREAM, the stored procedures will return the canonical XML representation as output.