导出元数据
--常规方式
On Windows Platform : userid="'"/ as sysdba"'" or userid="""/ as sysdba""" or userid="'"/ as sysdba”'"
--常规方式
On Windows Platform : userid="'"/ as sysdba"'" or userid="""/ as sysdba""" or userid="'"/ as sysdba”'"
On Unix Platform : userid=\'/ as sysdba\'