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') a
left join
(select table_name from all_all_tables where owner='ZBWEBTEST') b
on a.table_name = b.table_name

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