我非常绝望,我刚刚在this steps之后创建了一个新的Oracle数据库,其sys和系统密码为“ oracle”。创建成功完成,但是当我尝试远程连接到该数据库时。
通过SQLDeveloper我遇到错误
ORA-01017 invalid username/password denied
并且对用户scott / tiger正常工作(手动创建并授予连接权限)。
新创建的实例为TEST。如果我通过sqlplus连接/效果很好
$ ORACLE_SID=TEST
$ sqlplus / as sysdba
SQL*Plus: Release 12.2.0.1.0 Production on Fri Jun 5 19:32:52 2020
Copyright (c) 1982, 2016, Oracle. All rights reserved.
Connected to:
Oracle Database 12c Standard Edition Release 12.2.0.1.0 - 64bit Production
SQL>
当我尝试连接时说用户名/密码未连接
$ ORACLE_SID=TEST
$ sqlplus sys/oracle@TEST as sysdba
SQL*Plus: Release 12.2.0.1.0 Production on Fri Jun 5 19:35:30 2020
Copyright (c) 1982, 2016, Oracle. All rights reserved.
ERROR:
ORA-12154: TNS:could not resolve the connect identifier specified
Enter user-name:
但是听众显然知道新实例
$ lsnrctl status
LSNRCTL for Linux: Version 12.2.0.1.0 - Production on 05-JUN-2020 19:37:06
Copyright (c) 1991, 2016, Oracle. All rights reserved.
Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 12.2.0.1.0 - Production
Start Date 05-JUN-2020 18:56:57
Uptime 0 days 0 hr. 40 min. 8 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Log File /u01/app/oracle/diag/tnslsnr/d69dcf11a559/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=d69dcf11a559)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=d69dcf11a559)(PORT=8080))(Presentation=HTTP)(Session=RAW))
Services Summary...
Service "TEST" has 1 instance(s).
Instance "TEST", status READY, has 1 handler(s) for this service...
Service "TESTXDB" has 1 instance(s).
Instance "TEST", status READY, has 1 handler(s) for this service...
Service "orcl" has 1 instance(s).
Instance "orcl", status READY, has 1 handler(s) for this service...
Service "orclXDB" has 1 instance(s).
Instance "orcl", status READY, has 1 handler(s) for this service...
The command completed successfully
@ TEST
表示:在目录中查找(tnsnames.ora,ldap等),然后解析 我的别名TEST为主机名和数据库SERVICE_NAME = TEST。
配置tnsname并从连接字符串中隐藏连接详细信息
cat >> $ORACLE_HOME/network/admin/tnsnames.ora <<EOF
TEST,YOU_CAN_NAME_IT_WHATERVER_SO_NOW_YOU_HAVE_TWO_ALIASES=(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=localhost)(PORT=1521))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=TEST)))
EOF
现在可以连接
sqlplus sys/oracle@TEST as sysdba
sqlplus sys/oracle@YOU_CAN_NAME_IT_WHATERVER_SO_NOW_YOU_HAVE_TWO_ALIASES as sysdba
如果您正在做临时工作,并且不想配置别名,则不必
sqlplus sys/oracle@(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=db-hostname)(PORT=1521))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=TEST))) as sysdba
另一个选择是使用EZ_CONNECT(host:port / SERVICE_NAME)
sqlplus sys/oracle@localhost:1521/TEST as sysdba
或使用TWO_TASK env变量:
export TWO_TASK=localhost:1521/TEST
sqlplus sys/oracle as sysdba
祝你好运!
[日常情况中的[ORA-12154
错误]可能是这样的:您想通过电话呼叫某人,但不知道他们的电话号码,因此您拿了电话簿进行搜索,但是-没有电话号码该人。
TEST
文件中找不到数据库别名(在您的情况下为TNSNAMES.ORA
),因此-我建议您检查一下,如果确实如此,情况下,在其中添加TEST
,然后重试。请注意-如果您在同一台计算机上安装了多个Oracle产品-每个产品都有其自己的TNSNAMES.ORA
(
电话簿
,对吗?)文件,因此您随时可以添加新数据库别名,则必须在每个这些文件中执行此操作。在这种情况下,请创建一个TNS_ADMIN
环境变量,该变量指向某个包含TNSNAMES.ORA
文件的目录,并且仅在该单个文件中维护所有更改。 Oracle将知道在哪里查看。 orapwd FILE="$ORACLE_HOME/dbs/orapw$ORACLE_SID" PASSWORD="$ORACLE_TEMP_PASSWORD" SYS="$ORACLE_TEMP_PASSWORD"
我不记得放置orapwdSID文件后是否重新启动数据库。密码必须至少包含8个字符,包括字符,数字和符号。您可以稍后通过SQL语句更改它
echo "alter user sys identified by ${ORACLE_SYS_PASSWORD}" | sqlplus / as sysdba echo "alter user system identified by ${ORACLE_SYSTEM_PASSWORD}" | sqlplus / as sysdba
2。 TNSNAMES.ORA[另一方面,我发现this post reply之后缺少TNSNAMES.ORA
$ strace sqlplus -L sys/oracle@TEST 2>&1 | grep -i 'tnsnames.ora' access("/home/oracle/.tnsnames.ora", F_OK) = -1 ENOENT (No such file or directory) access("/etc/tnsnames.ora", F_OK) = -1 ENOENT (No such file or directory) access("/u01/app/oracle/product/12.2.0/SE/network/admin/tnsnames.ora", F_OK) = -1 ENOENT (No such file or directory)
正如两个用户所说,@ TEST只是一个客户端别名。据我所知,客户端程序用于将别名转换为连接数据库的方式。
实际上,就我而言,我并不关心通过别名(@TEST)进行连接,因为我可以通过EZ_CONNECT实现与@ bjarte-brandt所述的相同。
sqlplus sys/oracle@localhost:1521/TEST as sysdba
谢谢你们的帮助。