oracle删除指定用户下的表与Sequence

-- 以用户SMTJ2012为例
-- 删除所有表
declare owner_name varchar(20);
cursor cur1 is select table_name from dba_tables where owner=owner_name;
begin
owner_name := 'SMTJ2012';
for cur2 in cur1 loop
execute immediate 'drop table '||owner_name||'.'||cur2.table_name;
end loop;
end;
-- 如果 dba_tables 没有权限的话可以使用 user_tables，上述cur1可以改成
-- select table_name from user_tables;
-- user_tables为owner为本用户的表，注意与dba_tables的区别

-- 删除所有SEQ
declare owner_name varchar(20);
cursor cur1 is select sequence_name from user_sequences;
begin
owner_name := 'SMTJ2012';
for cur2 in cur1 loop
execute immediate 'drop sequence '||owner_name||'.'||cur2.sequence_name;
end loop;
end;