E:\tools\oracle\product\11.2.0\dbhome_1\NETWORK\ADMIN 下也有tnsnames文件,启动PLSQL Developer一般检测该目录下的tnsnames , 但是你的配置
系统变量ORACLE_HOME且值为E:\tools\oracle\product\11.2.0\dbhome_1(以自己的oracle安装目录为准),配置文件内容为
# tnsnames.ora Network Configuration File: F:\tools\oracles\product\11.2.0\dbhome_1\network\admin\tnsnames.ora
# Generated by Oracle configuration tools.
LISTENER_ORCL =
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
ORACLR_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
)
(CONNECT_DATA =
(SID = CLRExtProc)
(PRESENTATION = RO)
)
)
ORCL =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)
本文介绍了一个具体的Oracle数据库连接配置案例,展示了如何通过设置系统变量ORACLE_HOME和编辑tnsnames.ora文件来确保PLSQL Developer能够正确地连接到Oracle数据库。配置内容包括监听器和数据库服务的具体参数。
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