Filtering by value of another column

Aug 30, 2013 at 6:24 PM
Hi! I´m looking forward to add the value of another column inside the same list I have the Filtered Lookup Field into the query. Example
          <FieldRef Name="Departament" />
                <Value Type="Lookup">[Value of another column]</Value>
For this kind of things i usually use another kind of column but i need to choose multiple values and that option is not supported in the other type.