16.20 - SHOW and the IN XML Option - Teradata Database - Teradata Vantage NewSQL Engine

Teradata Vantage™ SQL Data Definition Language Detailed Topics

Product
Teradata Database
Teradata Vantage NewSQL Engine
Release Number
16.20
Release Date
March 2019
Content Type
Programming Reference
Publication ID
B035-1184-162K
Language
English (United States)

You can submit a SHOW request with the IN XML option to return the definitions of all the objects referenced by the specified DML request in XML format.

You cannot specify the IN XML option for the following database objects:
  • CAST
  • CONSTRAINT
  • ERROR TABLE
  • FUNCTION
  • MACRO
  • METHOD
  • PROCEDURE
  • SPECIFIC FUNCTION
  • TRIGGER
  • TYPE

The encoding of object names, SQL text, and literal character values is controlled by the default character for the session in which a SHOW IN XML request is executed.

Teradata Database sorts the objects in a topological order where objects in the lower order do not depend on objects in the higher order.

While Teradata provides the XML schemas required to interpret the XML files produced by the IN XML option, you must use a tool with a standard XML parser to interpret them.

Teradata Database returns the response to any SHOW IN XML request in a single result set in most cases. For multistatement requests that contain multiple SHOW IN XML statements, Teradata Database returns multiple result sets, with each result set containing one XML document that corresponds to the matching request.

Unlike the case for ordinary SHOW requests, you cannot submit the output of a SHOW IN XML request to Teradata Database to recreate the same database object.