oracle查看两个用户的表是否一样多

查看两个用户的表是否一样多,用户名要大写

select count(a.table_name),count(b.table_name) from(select table_name from all_all_tables where owner='ZBWEB') aleft join(select table_name from all_all_tables where owner='ZBWEBTEST') bon a.table_name = b.table_name