Example: Using EXISTSNODE to Check If a Query Will Return a Result

Teradata Vantage™ XML Data Type

brand
Software
Teradata Vantage
prodname
Teradata Database
Teradata Vantage NewSQL Engine
vrm_release
16.20
category
Programming Reference
featnum
B035-1140-162K

This query returns all ids in the customer table for which the corresponding XML document in the column customerXML has an element named customer whose Name child element has the value "John Hancock".

SELECT customerID
FROM customer
WHERE customerXML.EXISTSNODE('/Customer[Name="John Hancock"]', '') = 1;

Query result:

customerID
-----------
          1