文档介绍：很久没有使用 sqlplus 创建表空间和用户了,需要的时候竟然忘记了密码,试了好多次都没连接上, 进而用户也被锁定, 在网上找了一些资料, 问题解决了, 希望对和我一样情况的朋友们有所帮助。 1. 安装时选择的自动安装, 忘了用户名和密码导致现在试了几个默认的用户名密码後( 表格中附带默认用户名及密码),都提示无效的用户名、密码, Username Password Description See Also CTXSYS CTXSYS The Oracle Text account Oracle Text Reference DBSNMP DBSNMP The account used by the Management ponent of Oracle Enterprise Manager to monitor and manage the database Oracle Enterprise Manager Grid Control Installation and Basic Configuration LBACSYS LBACSYS The Oracle Label Security administrator account Oracle Label Security Administrator's Guide MDDATA MDDATA The schema used by Oracle Spatial for storing Geocoder and router data Oracle Spatial User's Guide and Reference MDSYS MDSYS The Oracle Spatial and Oracle interMedia Locator administrator account Oracle Spatial User's Guide and Reference DMSYS DMSYS The Oracle Data Mining account. Oracle Data Mining Administrator's Guide Oracle Data Mining Concepts OLAPSYS MANAGER The account used to create OLAP metadata structures. It owns the OLAP Catalog (CWMLite). Oracle OLAP Application Developer's Guide ORDPLUGINS ORDPLUGINS The Oracle interMedia user. Plug-ins supplied by Oracle and third party format plug-ins are installed in this schema. Oracle interMedia User's Guide ORDSYS ORDSYS The Oracle interMedia administrator account Oracle interMedia User's Guide Username Password Description See Also OUTLN OUTLN The ac