[plain] C:\Documents and Settings\tkyte>sqlplus scott/tiger SQL*Plus: Release 10.1.0.4.0 - Production on Thu Sep 6 15:43:55 2007 Copyright (c) 1982, 2005, Oracle. All rights reserved. Connected to: Oracle database 10g Enterprise Edition Release 10.1.0.4.0 - Production With the Partitioning, OLAP and Data Mining options scott%ORA10GR1> exit Disconnected from Oracle Database 10g Enterprise Edition Release 10.1.0.4.0 - Production With the Partitioning, OLAP and Data Mining options C:\Documents and Settings\tkyte>net stop oracleserviceora10gr1 The OracleServiceORA10GR1 service is stopping......... The OracleServiceORA10GR1 service was stopped successfully. C:\Documents and Settings\tkyte>sqlplus scott/tiger SQL*Plus: Release 10.1.0.4.0 - Production on Thu Sep 6 15:44:35 2007 Copyright (c) 1982, 2005, Oracle. All rights reserved. ERROR: ORA-12560: TNS:protocol adapter error Enter user-name: ERROR: ORA-12560: TNS:protocol adapter error Enter user-name: ERROR: ORA-12560: TNS:protocol adapter error SP2-0157: unable to CONNECT to ORACLE after 3 attempts, exiting SQL*Plus C:\Documents and Settings\tkyte>net start oracleserviceora10gr1 The OracleServiceORA10GR1 service is starting.......... The OracleServiceORA10GR1 service was started successfully. C:\Documents and Settings\tkyte>sqlplus scott/tiger SQL*Plus: Release 10.1.0.4.0 - Production on Thu Sep 6 15:45:12 2007 Copyright (c) 1982, 2005, Oracle. All rights reserved. Connected to: Oracle Database 10g Enterprise Edition Release 10.1.0.4.0 - Production With the Partitioning, OLAP and Data Mining options scott%ORA10GR1><A name=PAGETOP></A> C:\Documents and Settings\tkyte>sqlplus scott/tiger SQL*Plus: Release 10.1.0.4.0 - Production on Thu Sep 6 15:43:55 2007 Copyright (c) 1982, 2005, Oracle. All rights reserved. Connected to: Oracle Database 10g Enterprise Edition Release 10.1.0.4.0 - Production With the Partitioning, OLAP and Data Mining options scott%ORA10GR1> exit Disconnected from Oracle Database 10g Enterprise Edition Release 10.1.0.4.0 - Production With the Partitioning, OLAP and Data Mining options C:\Documents and Settings\tkyte>net stop oracleserviceora10gr1 The OracleServiceORA10GR1 service is stopping......... The OracleServiceORA10GR1 service was stopped successfully. C:\Documents and Settings\tkyte>sqlplus scott/tiger SQL*Plus: Release 10.1.0.4.0 - Production on Thu Sep 6 15:44:35 2007 Copyright (c) 1982, 2005, Oracle. All rights reserved. ERROR: ORA-12560: TNS:protocol adapter error Enter user-name: ERROR: ORA-12560: TNS:protocol adapter error Enter user-name: ERROR: ORA-12560: TNS:protocol adapter error SP2-0157: unable to CONNECT to ORACLE after 3 attempts, exiting SQL*Plus C:\Documents and Settings\tkyte>net start oracleserviceora10gr1 The OracleServiceORA10GR1 service is starting.......... The OracleServiceORA10GR1 service was started successfully. C:\Documents and Settings\tkyte>sqlplus scott/tiger SQL*Plus: Release 10.1.0.4.0 - Production on Thu Sep 6 15:45:12 2007 Copyright (c) 1982, 2005, Oracle. All rights reserved. Connected to: Oracle Database 10g Enterprise Edition Release 10.1.0.4.0 - Production With the Partitioning, OLAP and Data Mining options
scott%ORA10GR1>修改方法：控制面板>管理工具>服務裏邊把OracleServiceSID起起來 可能的原因2.ORACLE_SID環境變量沒有指定（最常見引起ORA-12560問題的原因） 檢查方法，命令行(cmd)下， C:\Documents and Settings\ptian>set oracle_sid ORACLE_SID=test ORACLE_SID是sqlplus默認連接的數據庫instance,即sqlplus user/pwd連接的instance，如果不指定sqlplus裏連接的時候就需要明確@你的instance,eg,sqlplus user/pwd@instance . 修改方法：在註冊表中，HKEY_LOCAL_MACHINE\software\ORACLE\KEY_OraDb10g_home1\ORACLE_SID 需指向你的Instance(eg.orcl)；或者在系統的環境變量裏加ORACLE_SID項，值為Instance的SID。 可能的原因3.TNS_ADMIN環境變量沒有指定 檢查方法，命令行(cmd)下， C:\Documents and Settings\ptian>set TNS_ADMIN TNS_ADMIN=D:\oracle\product\10.1.0\Db_1\Network\ADMIN TNS_ADMIN應該返回你的tnsnames.ora所在的目錄 修改方法：可以在註冊表HKEY_LOCAL_MACHINE\SOFTWARE\ORACLE\HOME0\TNS_ADMIN或者環境變量中指定。 可能的原因4.ORACLE_HOME環境變量沒有指定 和上邊的方法類似，檢查Oracle_Home環境變量 可能的原因5.tnsnames.ora文件內容不對 A sample:
TEST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = ptian-cn.cn.oracle.com)(PORT = 1521))
(CONNECT_DATA =
http://www.bitscn.com/pdb/oracle/201311/(SERVER = DEDICATED)
(SERVICE_NAME = test)
)
)
Tags: Copyright Documents protocol service stopped
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