17.10 - EXISTSNODE Syntax - Advanced SQL Engine - Teradata Database

Teradata Vantageā„¢ - XML Data Type

Product
Advanced SQL Engine
Teradata Database
Release Number
17.10
Release Date
July 2021
Content Type
Programming Reference
Publication ID
B035-1140-171K
Language
English (United States)
EXISTSNODE (
  [ filterExpr, ]
  query,
  nsmap
)

Syntax Element

filterExpr
An optional filter expression that allows for streamed evaluation of the query expression. filterExpr is required if the query is being evaluated over a large XML value.
filterExpr must be VARCHAR(n), where the maximum supported size (n) is 512.
query
The XPath or XQuery query string.
query must be VARCHAR(n), where the maximum supported size (n) is 8192.
nsmap
Namespace declarations.
nsmap must be VARCHAR(n), where the maximum supported size (n) is 1024.