首先是查询出来所有的表，然后再逐一删除。
可以用excel编辑删除语句。
–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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