1. 安裝時選擇的自動安裝，由于時間久遠忘記用戶名、密碼了，導(dǎo)致現(xiàn)在試了幾個默認(rèn)的用戶名密碼後（表格中附帶默認(rèn)用戶名及密碼），都提示無效的用戶名、密碼，終于在試了下dbsnmp/dbsnmp，提示被鎖；
2. 在CMD中啟動SQLPLUS；用sqlplus/as sysdba登錄，提示
連接到:
Oracle Database
3. 執(zhí)行ALTER USER DBSNMP ACCOUNT UNLOCK；
4. 從新用SQL/PLUS登錄，設(shè)置用戶名、密碼；
注：由于剛才解鎖的用戶名是DBSNMP，所以這里設(shè)置的用戶名也是DBSNMP
Oracle
| Username | Password | Description | See Also |
| CTXSYS | CTXSYS | The Oracle Text account | Oracle Text Reference |
| DBSNMP | DBSNMP | The account used by the Management Agent component 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 |
| OUTLN | OUTLN | The account that supports plan stability. Plan stability enables you to maintain the same execution plans for the same SQL statements. OUTLN acts as a role to centrally manage metadata associated with stored outlines. | Oracle Database Performance Tuning Guide |
| SI_INFORMTN_SCHEMA | SI_INFORMTN_SCHEMA | The account that stores the information views for the SQL/MM Still Image Standard | Oracle interMedia User's Guide |
| SYS | CHANGE_ON_INSTALL | The account used to perform database administration tasks | Oracle Database Administrator's Guide |
| SYSMAN | CHANGE_ON_INSTALL | The account used to perform Oracle Enterprise Manager database administration tasks. Note that SYS and SYSTEM can also perform these tasks. | Oracle Enterprise Manager Grid Control Installation and Basic Configuration |
| SYSTEM | MANAGER | Another account used to perform database administration tasks. | Oracle Database Administrator's Guide |
