Tamino XML Server Version 9.7
 —  X-Query Reference Guide  —

PredicateExpr

Any expression within a predicate.


Syntax

PredicateExpr

Expr

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Description

A PredicateExpr can be any X-Query expression. If this expression results in a numeric value, then it is a numeric predicate, otherwise it is a Boolean predicate. See Predicate for more details.

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Compatibility

It corresponds to the expression PredicateExpr defined in XPath, Section 2.4, Rule 9.

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Example

Select all patients that have a next of kin (all patient nodes that have at least one immediate child element nextofkin):

/patient[nextofkin]

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Related Expressions

Expr Predicate Step

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