1、
select 'Drop table '||table_name||';'
from all_tables
where owner='要删除的用户名(注意要大写)';
2、
删除所有表
以用户test为例
for example:
declare
cursor cur1 is select table_name from dba_tables where owner='TEST';
begin
for cur2 in cur1 loop
execute immediate 'drop table test.'||cur2.table_name;
end loop;
end;
3、这个删除当前用户的所有对象(表、视图、触发器、存储过程、函数)
没试过
DECLARE
TYPE name_list
IS
TABLE
OF
VARCHAR2
(
40
);
TYPE type_list
IS
TABLE
OF
VARCHAR2
(
20
);

Tab_name name_list:
=
name_list();
Tab_type type_list:
=
type_list();

sql_str
VARCHAR2
(
500
);
BEGIN
sql_str :
=
'
select uo.object_name,uo.object_type from user_objects uo where uo.object_type not in(
''
INDEX
''
,
''
LOB
''
) order by uo.object_type desc
'
;
EXECUTE
IMMEDIATE sql_str
BULK
COLLECT
INTO
tab_name,tab_type;

FOR
i
IN
Tab_name.FIRST.. Tab_name.LAST LOOP
sql_str :
=
'
DROP
'
||
Tab_type(i)
||
'
'
||
Tab_name(i);
EXECUTE
IMMEDIATE sql_str;
END
LOOP;
END
;
http://blog.youkuaiyun.com/wengyupeng/article/details/2781748