Oracle删除当前用户下的所有表、视图、序列、函数、存储过程、包
--delete tables

select 'drop table ' || table_name ||';'||chr(13)||chr(10) from user_tables; 

--delete views

select 'drop view ' || view_name||';'||chr(13)||chr(10) from user_views;   

--delete seqs

select 'drop sequence ' || sequence_name||';'||chr(13)||chr(10) from user_sequences; 

--delete functions

select 'drop function ' || object_name||';'||chr(13)||chr(10) from user_objects where object_type='FUNCTION';   

--delete procedure

select 'drop procedure ' || object_name||';'||chr(13)||chr(10) from user_objects where object_type='PROCEDURE';   

--delete package

select 'drop package ' || object_name||';'||chr(13)||chr(10) from user_objects where object_type='PACKAGE';  

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