摘要：
select 'drop table ' || table_name ||';'||chr(13)||chr(10) from user_tables; --delete tablesselect 'drop view ' || view_name||';'||chr(13)||chr(10) from user_views; --delete viewsselect 'drop sequence ' || sequence_name||';'||chr(13)||chr(10) from user 阅读全文
