查询表、视图、存储过程、触发器的语据，用在数据库导入查看是否正确
select count(*) from user_tables;
select count(*) from user_objects where object_type=\'PROCEDURE\';
select count(*) from user_views;
SELECT count(*)
FROM USER_SOURCE
WHERE TYPE=\'TRIGGER\'
-------导入语据
imp qdaomujuku/rfx@orcl fromuser=rfxmujuku touser=qdaomujuku file=D:\\qingdao.dmp
----导出语据
exp rfxmujuku/rfx@orcl file=D:\\qingdao.dmp full=y