Oracle数据库的Schema备份和恢复可以通过多种方式实现，以下是其中一种常用方法：
备份Schema：
expdp username/password schemas=schema_name directory=backup_directory dumpfile=schema_name.dmp logfile=expdp_schema_name.log
恢复Schema：
CREATE USER new_schema IDENTIFIED BY password;
impdp new_schema/password schemas=schema_name directory=backup_directory dumpfile=schema_name.dmp logfile=impdp_schema_name.log remap_schema=schema_name:new_schema
impdp new_schema/password schemas=schema_name directory=backup_directory dumpfile=schema_name.dmp logfile=impdp_schema_name.log REMAP_SCHEMA=schema_name:new_schema
