SELECT T1.Service_Type_Description , T1.Service_Type_Code FROM Ref_Service_Types AS T1 JOIN Services AS T2 ON T1.Service_Type_Code  =  T2.Service_Type_Code GROUP BY T1.Service_Type_Code ORDER BY COUNT(*) DESC LIMIT 1
Find the description and code of the service type that is performed the most times.
SELECT T1.Service_Type_Description , T1.Service_Type_Code FROM Ref_Service_Types AS T1 JOIN Services AS T2 ON T1.Service_Type_Code = T2.Service_Type_Code GROUP BY T1.Service_Type_Code ORDER BY COUNT ( * ) DESC LIMIT 1
select t1 . service_type_description , t1 . service_type_code from ref_service_types as t1 join services as t2 on t1 . service_type_code = t2 . service_type_code group by t1 . service_type_code order by count ( * ) desc limit value
Find the description and code of the service type that is performed the most times .