ORA-12154 TNS 无法解析指定的连接标识符 .今天数据库突然连接时报这个错误,plsql连接不上,应用程序连接不上,但是sql可以连上。到网上找了半天,也改了半天。其实我的listener.ora 文件是一直没有动的。网上的人说改了之后重启服务就可以。目录结构如下:# listener.ora Network Configuration File: D:Oracleproduct10.1.0db_1
etworkadminlistener.ora
# Generated by Oracle configuration tools.
# 我加了下面的东西 (SID_DESC=
# (GLOBAL_DBNAME = ORCL)
# (ORACLE_HOME = d:oracleproduct10.1.0db_1)
# (SID_NAME =ORCL)
# )
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = D:oracleproduct10.1.0db_1)
(PROGRAM = extproc)
)
(SID_DESC=
(GLOBAL_DBNAME = ORCL)
(ORACLE_HOME = d:oracleproduct10.1.0db_1)
(SID_NAME =ORCL)
)
)LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))
)
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521))
)
)
)其实什么都不必要改;只需要重启Oracle listener服务即可解决问题。Oracle中MERGE INTO的用法SQL *Plus设置login.sql登录设置相关资讯 Oracle基础教程
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