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一、listener.ora文件配置
# listener.ora Network Configuration File: D:\ORACLE\product\11.2.0\dbhome_1\NETWORK\ADMIN\listener.ora
# Generated by Oracle configuration tools.
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = CLRExtProc)
(ORACLE_HOME = D:\ORACLE\product\11.2.0\dbhome_1)
(PROGRAM = extproc)
(ENVS = "EXTPROC_DLLS=ONLY:D:\ORACLE\product\11.2.0\dbhome_1\bin\oraclr11.dll")
)
#sid_desc为服务连接的描述名
#1.如果不设置，使用plsql连接时会报ora-12514:无法识别连接描述符
#2.如果不设置，在使用sqlplus连接本机时，如：sqlplus system/123456@testorcl 时，也会报ora-12514错误
#3.如果不设置，在连接本机时，只能使用：sqlplus system/123456 连接到默认的数据库（有多个数据库无法指定数据库）
#4.有的电脑或者版本可能不用配置也行
(SID_DESC =
(SID_NAME = ORCL)
(ORACLE_HOME = D:\ORACLE\product\11.2.0\dbhome_1)
)
(SID_DESC =
(SID_NAME = TESTORCL)
(ORACLE_HOME = D:\ORACLE\product\11.2.0\dbhome_1)
)
)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
)
#下面的host如果只是本机使用可设置为localhost或127.0.0.1，如果提供给局域网的其他电脑远程连接
#则将host设置成电脑的ip地址
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.98)(PORT = 1521))
)
)
ADR_BASE_LISTENER = D:\ORACLE
二、tnsnames.ora文件配置
# tnsnames.ora Network Configuration File: D:\ORACLE\product\11.2.0\dbhome_1\NETWORK\ADMIN\tnsnames.ora
# Generated by Oracle configuration tools.
LISTENER_TESTORCL =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.98)(PORT = 1521))
LISTENER_ORCL =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.98)(PORT = 1521))
ORACLR_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(Key = EXTPROC1521))
)
(CONNECT_DATA =
(SID = CLRExtProc)
(PRESENTATION = RO)
)
)
TESTORCL =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.98)(PORT = 1521))
)
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = testorcl)
)
)
ORCL =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.98)(PORT = 1521))
)
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)
三、sql.net文件配置
# sqlnet.ora Network Configuration File: D:\ORACLE\product\11.2.0\dbhome_1\NETWORK\ADMIN\sqlnet.ora
# Generated by Oracle configuration tools.
# This file is actually generated by netca. But if customers choose to
# install "Software Only", this file wont exist and without the native
# authentication, they will not be able to connect to the database on NT.
NAMES.DIRECTORY_PATH= (TNSNAMES, EZCONNECT)
ADR_BASE = D:\ORACLE
四、主机同时安装oracle服务器端与plsql客户端的问题
windows10系统上安装了oracle服务器端64位，在本机dos窗口使用sqlplus命令能正常进入数据库。安装plsql后，无法使用plsql连接到数据库，报ora-12557错误。 首先查看plsql是32位或64位的，如果是32位的，会与本机的64位服务器端冲突，需要将plsql更换成64位的进行安装。
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