Stephan Bruijnis .dev


Semantics of XPath expressions

Nov 25, 2015
SQL, xPath

XPath expressions can be added to any XPath query in Mendix to constrain the queried Mendix object. The XPath expression can be a combination of variables, operations, functions, keywords and system variables. This post will focus on the semantics of certain XPath expressions with the AND-operator. A seemingly small change in the notation of an XPath expression using this operator can have a huge impact on the retrieved data. Different notations of XPath expressions # Consider the following scenario, a team has multiple members (employees) and each employee can speak multiple languages. ...