SELECT T1.template_type_code FROM Templates AS T1 JOIN Documents AS T2 ON T1.template_id  =  T2.template_id GROUP BY T1.template_type_code ORDER BY count(*) DESC LIMIT 1
Which template type code is used by most number of documents?
SELECT T1.template_type_code FROM Templates AS T1 JOIN Documents AS T2 ON T1.template_id = T2.template_id GROUP BY T1.template_type_code ORDER BY count ( * ) DESC LIMIT 1
select t1 . template_type_code from templates as t1 join documents as t2 on t1 . template_id = t2 . template_id group by t1 . template_type_code order by count ( * ) desc limit value
Which template type code is used by most number of documents ?