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/* Query, QueryItem */
{{HintMethods}}
== Query, QueryItem and its QueryItems ==A Query is defined for a single [[MetaClass]]. The , where the MetaClass is defined by a Referenceproperty in the property '''FILTEROBJECT'''. A Query Once a query is evaluated it will deliver a list of objects of type ContentClasses (instances) of the , filtered as defined MetaClass. A Query holds a list of by its [[QUERYITEM|QueryItems]]. A single QueryItem defines a single filter rule for the evaluation of the result collection:* OPERATORe.g. “=”* LIKECOMPARISONis the given item a “LIKE” filter criteria (wildcard is added to the filtervalue) * FILTERVALUEthe value the objects are compared to * ISNULLsearched for NULL values* LOGICALANDis there a logical AND relation between the given QueryItem and its predecessor (TRUE) or an OR relation (false)
== Relation between Query and Items ==
