contains

The contains() function tests whether one string contains another as a substring. For example, the expression «contains('Santorini','ant') » returns true .

Argument	Data Type	Meaning
value	xs:string?	The containing string
substring	xs:string?	The test string
collation (optional)	xs:string	The collation to be used
Result	xs:boolean	true if the containing string has a substring that is equal to the test string, false otherwise