Submit the given query string and return a single String which is the concatenation of all the ResultItems, separated by the given separator string.
[Visual Basic] Overridable Public Function ExecuteToSingleString( _    ByVal query As String, _    ByVal separator As String _ ) As String
[C#] public virtual string ExecuteToSingleString(    string query,    string separator );
Parameters
query
XQuery code as a String, to be evaluated by the server.
separator
A String value which will be inserted in the final string between each item of the sequence. A value of null is equivalent to the empty string.
Return Value
A String consisting of the ResultItem.AsString() value of each item with the separator string inserted between each instance.