RecordRestrictionAddition Operator
Combines two record restrictions with an AND condition.
If both parameters are
null, result will be
null. If one parameter is
null
and the other parameter is not, the non-null parameter will be returned. Equally, if the
FilterExpression of both parameters are
null, empty or only whitespace,
then the result will be
null. If one parameter has a filter expression that is
null, empty or whitespace and the other parameter's filter expression is defined, then
the parameter that has a filter expression will be returned.