ORA-12154: TNS: 无法解析指定的连接标识符 oracle连接不了 报ORA-12154：TNS：无法解析...
\u5982\u4f55\u89e3\u51b3ORA-12154\uff1aTNS\uff1a\u65e0\u6cd5\u89e3\u6790\u6307\u5b9a\u7684\u8fde\u63a5\u6807\u8bc6\u7b26\u3000\u3000\u5728\u7a0b\u5e8f\u4e2d\u8fde\u63a5Oracle\u6570\u636e\u5e93\u7684\u65b9\u5f0f\u4e0e\u5176\u4ed6\u5e38\u7528\u6570\u636e\u5e93\uff0c\u5982\uff1aMySql,Sql Server\u4e0d\u540c\uff0c\u8fd9\u4e9b\u6570\u636e\u5e93\u53ef\u4ee5\u901a\u8fc7\u76f4\u63a5\u6307\u5b9aIP\u7684\u65b9\u5f0f\u8fde\u63a5\uff0c\u4f46\u662fOracle\u5219\u9700\u8981\u901a\u8fc7Oracle\u5ba2\u6237\u7aef\u914d\u7f6e\u7f51\u7edc\u670d\u52a1\u540d\u7684\u65b9\u5f0f\u6765\u8fde\u63a5\u3002\u5426\u5219\u5c31\u4f1a\u51fa\u73b0\u201cORA-12154: TNS: \u65e0\u6cd5\u89e3\u6790\u6307\u5b9a\u7684\u8fde\u63a5\u6807\u8bc6\u7b26\u201d\u3002\u914d\u7f6eOracle\u5ba2\u6237\u7aef\u8be6\u7ec6\u6b65\u9aa4\u5982\u4e0b\uff1a
\u3000\u3000\u5b89\u88c5\u597dOracle\u5ba2\u6237\u7aef\u4e4b\u540e\uff0c\u5728\u5f00\u59cb\u83dc\u5355\u4e2d\u4f9d\u6b21\u627e\u5230\u201cOracle - OraClient10g_home1\u2014>\u914d\u7f6e\u548c\u79fb\u690d\u5de5\u5177\u2014>Net Manager\u201d\u5e76\u6253\u5f00\uff08Win7,Win8\u7528\u6237\u5982\u679c\u6ca1\u6709\u53d6\u5f97Administrator\u8d26\u53f7\u767b\u9646\u9700\u8981\u4ee5\u7ba1\u7406\u5458\u65b9\u5f0f\u8fd0\u884c\uff09\uff0c\u4f9d\u6b21\u5c55\u5f00\u201cOracle Net\u914d\u7f6e\u2014>\u672c\u5730\u2014>\u670d\u52a1\u547d\u540d\u201d\u70b9\u51fb\u5de6\u4fa7\u201c\u52a0\u53f7\u201d\u914d\u7f6e\u65b0\u7684\u7f51\u7edc\u670d\u52a1
\u3000\u3000
\u3000\u3000\u6700\u540e\uff0c\u70b9\u51fb\u201c\u4e0b\u4e00\u6b65\u201d\u5b8c\u6210\u5373\u53ef\uff0c\u5982\u679c\u4e0d\u77e5\u9053\u6216\u8005\u5fd8\u8bb0Oracle\u670d\u52a1\u540d\u53ef\u4ee5\u901a\u8fc7\u67e5\u770b\u670d\u52a1\u83b7\u5f97\uff0c\u6bd4\u5982\u6211\u8fd9\u91cc\u914d\u7f6e\u7684\u4e3b\u673a\u540d\u662f\u6211\u672c\u673a\uff0c\u5728\u6211\u7684\u7535\u8111\u670d\u52a1\u4e2d\u627e\u5230oracle\u76f8\u5173\u7684\u670d\u52a1
\u3000\u3000
\u3000\u3000\u901a\u8fc7\u4e0a\u9762\u7684\u670d\u52a1\u540d\u79f0\uff0c\u53ef\u4ee5\u770b\u51fa\u6211\u5b89\u88c5\u7684\u670d\u52a1\u540d\u5c31\u662f\u201cORCL\u201d\uff0c\u6216\u8005\u5728\u670d\u52a1\u7aef\u901a\u8fc7SQL Plus\u4f7f\u7528sys\u8d26\u53f7\u767b\u9646\uff0c\u8f93\u5165\u547d\u4ee4
\u3000\u3000show parameter service_name\u67e5\u770b\u3002
\u3000\u3000OracleDBConsoleORCL\u662fOracle\u7f51\u9875\u7aef\u7ba1\u7406\u5de5\u5177\u7684\u670d\u52a1\uff0c\u8bbf\u95ee\u5730\u5740\u4e00\u822c\u4e3a\u201chttp://127.0.0.1:1158/em/console/logon/logon\u201d\uff0c\u5982\u679c\u4e0d\u4e60\u60ef\u7528\u8fd9\u4e2a\u6765\u7ba1\u7406\u6570\u636e\u5e93\u53ef\u4ee5\u4e0d\u7528\u542f\u52a8\u3002
\u3000\u3000OracleJobSchedulerORCL\u662f\u7ba1\u7406Oracle\u4e2d\u8ba1\u5212\u4efb\u52a1\u7684\uff0c\u4e00\u822c\u4e0d\u7528\u542f\u52a8\u3002
\u3000\u3000OracleOraDb10g_home1iSQL*Plus\u662fSQL Plus\u7684\u670d\u52a1\uff0c\u5982\u679c\u4e0d\u4e60\u60ef\u5728\u547d\u4ee4\u884c\u4e0b\u9762\u64cd\u4f5c\u6570\u636e\u5e93\uff0c\u53ef\u4ee5\u4e0d\u7528\u542f\u52a8\u3002
\u3000\u3000OracleServiceORCL\uff0cOracleOraDb10g_home1TNSListener\u90fd\u9700\u8981\u5f00\u542f\uff0c\u524d\u8005\u662f\u4e3b\u670d\u52a1\uff0c\u540e\u8005\u662f\u76d1\u542c\u670d\u52a1\u3002
\u3000\u3000
\u3000\u3000\u5f53\u5728Oracle\u5ba2\u6237\u7aef\u4e2d\u914d\u7f6e\u597dNet Manager\u4e2d\u914d\u7f6e\u597d\u670d\u52a1\u540e\u5c31\u53ef\u4ee5\u901a\u8fc7\u6211\u4eec\u914d\u7f6e\u7684\u7f51\u7edc\u670d\u52a1\u540d\u8bbf\u95eeOracle\u6570\u636e\u5e93\u4e86\uff0c\u6b64\u914d\u7f6e\u5b9e\u8d28\u60f3D:\Oracle\product\10.2.0\client_1\NETWORK\ADMIN\tnsnames.ora\u4e2d\u589e\u52a0\u4e86\u4e00\u884c\u914d\u7f6e(\u7531\u4e8e\u6211\u7684Oracle\u662f\u5b89\u88c5\u5728D\u76d8Oracle\u76ee\u5f55\u4e2d\uff0c\u5177\u4f53\u8def\u5f84\u6839\u636e\u5b89\u88c5\u65f6\u9009\u62e9\u7684\u8def\u5f84\u800c\u5b9a)\u3002
\u3000\u3000
\u3000\u3000# tnsnames.ora Network Configuration File: d:\Oracle\product\10.2.0\client_1\NETWORK\ADMIN\tnsnames.ora
\u3000\u3000# Generated by Oracle configuration tools.
\u3000\u3000ORCL =
\u3000\u3000(DESCRIPTION =
\u3000\u3000(ADDRESS_LIST =
\u3000\u3000(ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521))
\u3000\u3000)
\u3000\u3000(CONNECT_DATA =
\u3000\u3000(SERVICE_NAME = ORCL)
\u3000\u3000)
\u3000\u3000)
\u3000\u3000\u5982\u679c\u5728\u540c\u4e00\u53f0\u7535\u8111\u4e0a\u9762\u540c\u65f6\u5b89\u88c5\u4e86Oracle\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u7aef\uff0c\u90a3\u4e48\u5728\u670d\u52a1\u7aef\u7684\u5b89\u88c5\u76ee\u5f55\u4e2d\u4e5f\u4f1a\u5b58\u5728\u540c\u6837\u7684\u914d\u7f6e\u6587\u4ef6D:\Oracle\product\10.2.0\db_1\NETWORK\ADMIN\tnsnames.ora\uff0c\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\u5982\u679c\u6211\u4eec\u914d\u7f6e\u597d\u4e86\u5ba2\u6237\u7aefNet Manager\u7136\u540e\u8fde\u63a5Oracle\u6570\u636e\u5e93\uff0c\u53ef\u80fd\u4f1a\u51fa\u73b0\u201cORA-12154: TNS: \u65e0\u6cd5\u89e3\u6790\u6307\u5b9a\u7684\u8fde\u63a5\u6807\u8bc6\u7b26\u201d\u8fd9\u65f6\uff0c\u4f60\u5c31\u5e94\u8be5\u6000\u7591\uff0c\u6211\u5230\u5e95\u8bbf\u95ee\u7684\u662f\u54ea\u4e2a\u8def\u5f84\u4e0b\u7684\u914d\u7f6e\u6587\u4ef6\u5462\uff1f\u6b64\u65f6\u53ef\u4ee5\u4f7f\u7528tnsping\u547d\u4ee4
\u3000\u3000
\u3000\u3000\u5982\u679c\u4f60\u662f\u5728\u5ba2\u6237\u7aefNet Manager\u4e2d\u914d\u7f6e\u7684\u7f51\u7edc\u670d\u52a1\uff0c\u4f46\u662f\u6b64\u65f6\u89e3\u6790\u51fa\u6765\u7684\u4f7f\u7528\u53c2\u6570\u6587\u4ef6\u5374\u662fD:\Oracle\product\10.2.0\db_1\NETWORK\ADMIN\sqlnet.ora\uff0c\u90a3\u4e48\u6211\u60f3\u4f60\u5e94\u8be5\u660e\u767d\u4e86\u3002\u8fd9\u79cd\u60c5\u51b5\u6709\u4e24\u79cd\u89e3\u51b3\u529e\u6cd5\uff1a
\u3000\u3000\u7b2c\u4e00\uff1a\u5728\u670d\u52a1\u7aef\u7684Net Manager\u4e5f\u914d\u7f6e\u76f8\u540c\u7684\u7f51\u7edc\u670d\u52a1\uff0c\u6216\u8005\u76f4\u63a5\u62f7\u8d1dD:\Oracle\product\10.2.0\client_1\NETWORK\ADMIN\tnsnames.ora\u4e2d\u7684\u914d\u7f6e\u5230D:\Oracle\product\10.2.0\db_1\NETWORK\ADMIN\tnsnames.ora\uff0c\u6bcf\u6b21\u914d\u7f6e\u4e86\u65b0\u7684\u7f51\u7edc\u670d\u52a1\u4f60\u90fd\u9700\u8981\u8fd9\u4e48\u505a\uff0c\u5982\u679c\u4e0d\u60f3\u8fd9\u4e48\u9ebb\u70e6\u90a3\u5c31\u4f7f\u7528\u7b2c\u4e8c\u79cd\u89e3\u51b3\u529e\u6cd5\u3002
\u3000\u3000\u7b2c\u4e8c\uff1a\u4fee\u6539\u7cfb\u7edf\u73af\u5883\u53d8\u91cfPath\u503c\uff0c\u5c06D:\Oracle\product\10.2.0\client_1\bin;\u8def\u5f84\u79fb\u81f3D:\Oracle\product\10.2.0\db_1\bin;\u524d\u9762\u5373\u53ef\u4e00\u52b3\u6c38\u9038\u3002
\u3000\u3000\u6ce8\u610f\uff1a\u9020\u6210\u4ee5\u4e0a\u8fd9\u79cd\u60c5\u51b5\u51fa\u73b0\u7684\u539f\u56e0\u662f\uff1a\u5728\u4e00\u53f0\u7535\u8111\u4e0a\u540c\u65f6\u5b89\u88c5\u4e86oracle\u5ba2\u6237\u7aef\u548c\u6570\u636e\u5e93\u670d\u52a1\uff0c\u5e76\u4e14\u662f\u5148\u5b89\u88c5\u5ba2\u6237\u7aef\uff0c\u518d\u5b89\u88c5\u6570\u636e\u5e93\u670d\u52a1\u9020\u6210\u7684\uff0c\u5982\u679c\u5148\u5b89\u88c5\u6570\u636e\u5e93\u670d\u52a1\uff0c\u518d\u5b89\u88c5\u5ba2\u6237\u7aef\u5c31\u4e0d\u4f1a\u51fa\u73b0\u8fd9\u79cd\u60c5\u51b5\u4e86\u3002
\u3000\u3000\u6839\u636e\u4ee5\u4e0a\u65b9\u5f0f\u914d\u7f6e\u5b8coracle\u540e\uff0c\u76f8\u4fe1\u5728\u7a0b\u5e8f\u4e2d\u5c31\u53ef\u4ee5\u6b63\u5e38\u8fde\u63a5oracle\u6570\u636e\u5e93\u4e86\u3002
\u3000\u3000
\u3000\u3000\u5f53\u6211\u5b89\u88c5\u597dPLSQL Developer\u8f6f\u4ef6\u540e\u767b\u9646\u65f6\u4efb\u7136\u51fa\u73b0\u4e86\u201cORA-12154: TNS: \u65e0\u6cd5\u89e3\u6790\u6307\u5b9a\u7684\u8fde\u63a5\u6807\u8bc6\u7b26\u201d\uff0c\u5982\u679c\u662fWin7,Win8\u7528\u6237\u751a\u81f3\u53ef\u4ee5\u4f1a\u51fa\u73b0\u5f39\u51fa\u4e00\u4e2a\u767d\u6846\u7684\u60c5\u51b5\uff0c\u8fd9\u65f6\u9700\u8981\u4ee5\u7ba1\u7406\u5458\u8eab\u4efd\u8fd0\u884cPLSQL Developer\uff0c\u5e76\u4e14\u786e\u4fdd\u4f60\u7684PLSQL Developer\u662f\u8bfb\u53d6\u7684oracle\u5ba2\u6237\u7aef\u914d\u7f6e\uff0c\u76f4\u63a5\u53d6\u6d88\u767b\u9646\uff0c\u5728PLSQL Developer\u5de5\u5177\u680f\u4e2d\u627e\u5230\u201cTools\u2014>Preferences\u201d\uff0c\u5728Oracle\u7684Connection\u8282\u70b9\u4e2d\u627e\u5230Oracle Home\u9009\u62e9OraClient10g_home1\uff0c\u4fdd\u5b58\u540e\u5173\u95edPLSQL Developer\u5c31\u53ef\u4ee5\u6b63\u5e38\u767b\u9646\u4e86\u3002
\u3000\u3000
\u3000\u3000\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5728\u5b89\u88c5PLSQL Developer\u65f6\u4e0d\u80fd\u5b89\u88c5\u5728\u5e26\u6709\u62ec\u53f7\u7684\u76ee\u5f55\u4e2d\uff0c\u598264bit\u7cfb\u7edf\u7684Program Files (x86)\u76ee\u5f55\uff0c\u5c31\u4f1a\u51fa\u73b0\u65e0\u8bba\u4f60\u600e\u4e48\u8bbe\u7f6e\uff0c\u5b83\u4f9d\u7136\u4e0d\u505c\u7684\u5f39\u51fa\u201cORA-12154: TNS: \u65e0\u6cd5\u89e3\u6790\u6307\u5b9a\u7684\u8fde\u63a5\u6807\u8bc6\u7b26\u201d\u3002\u540c\u6837\u7684\u95ee\u9898\u4e5f\u4f1a\u51fa\u73b0\u5728\u5176\u4ed6Oracle\u6570\u636e\u5e93\u7ba1\u7406\u8f6f\u4ef6\u4e2d\uff0c\u6bd4\u5982Toad for Oracle
\u3000\u3000
\u3000\u3000\u201cORA-12154: TNS: \u65e0\u6cd5\u89e3\u6790\u6307\u5b9a\u7684\u8fde\u63a5\u6807\u8bc6\u7b26\u201d\u662f\u4f7f\u7528Oracle\u6570\u636e\u5e93\u7684\u65b0\u624b\u9047\u5230\u7684\u6bd4\u8f83\u5e38\u89c1\u7684\u95ee\u9898\u4e4b\u4e00\uff0c\u53ea\u8981\u6211\u4eec\u4e86\u89e3\u4e86\u5b83\u7684\u5de5\u4f5c\u65b9\u5f0f\uff0c\u51b7\u9759\u6392\u67e5\uff0c\u76f8\u4fe1\u5f88\u5bb9\u6613\u5c31\u80fd\u591f\u627e\u5230\u95ee\u9898\u7684\u89e3\u51b3\u529e\u6cd5\u7684\u3002
\u6253\u5f00client\u5b89\u88c5\u76ee\u5f55\u4e0bnetwork->admin\u4e0b\u7684tnsnames.ora\u6587\u4ef6
\u5185\u5bb9\u5982\u4e0b\uff1a
# tnsnames.ora Network Configuration File: F:/oracle/product/10.2.0/client_2/NETWORK/ADMIN/tnsnames.ora # Generated by Oracle configuration tools.
abc =(DESCRIPTION =(ADDRESS_LIST =(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.9)(PORT = 1521)))(CONNECT_DATA =(SID = orcl)(SERVER = DEDICATED)))
127.0.0.1_LOCALLOST =(DESCRIPTION =(ADDRESS_LIST =(ADDRESS = (PROTOCOL = TCP)(HOST = Locallost)(PORT = 1521)))(CONNECT_DATA =(SID = 127.0.0.1)(SERVER = DEDICATED)))
ORCL_LOCALHOST =(DESCRIPTION =(ADDRESS_LIST =(ADDRESS = (PROTOCOL = TCP)(HOST = Localhost)(PORT = 1521)))(CONNECT_DATA =(SID = orcl)(SERVER = DEDICATED)))
\u628a\u7ea2\u8272\u5b57\u4f53\u90e8\u5206\uff0c\u62f7\u8d1d\u5230\u670d\u52a1\u5668\u7aef\u7684\u5b89\u88c5\u76ee\u5f55\u4e0bnetwork->admin\u4e0b\u7684tnsnames.ora\u6587\u4ef6\u3002\u5982\u4e0b\u6240\u793a\uff1a
# tnsnames.ora Network Configuration File: F:/oracle/product/10.2.0/db_1/network/admin/tnsnames.ora # Generated by Oracle configuration tools.
ORCL =(DESCRIPTION =(ADDRESS = (PROTOCOL = TCP)(HOST = 74B5853F2D1648B)(PORT = 1521))(CONNECT_DATA =(SERVER = DEDICATED)(SERVICE_NAME = orcl)))
abc =(DESCRIPTION =(ADDRESS_LIST =(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.9)(PORT = 1521)))(CONNECT_DATA =(SID = orcl)(SERVER = DEDICATED)))
EXTPROC_CONNECTION_DATA =(DESCRIPTION =(ADDRESS_LIST =(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1)))
\u4fee\u6539\u540e\uff0c\u53d1\u73b0\u53ef\u4ee5\u8fde\u63a5\u6570\u636e\u5e93\u4e86\u3002
Oracle Database\uff0c\u53c8\u540dOracle RDBMS\uff0c\u6216\u7b80\u79f0Oracle\u3002\u662f\u7532\u9aa8\u6587\u516c\u53f8\u7684\u4e00\u6b3e\u5173\u7cfb\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\u3002\u5b83\u662f\u5728\u6570\u636e\u5e93\u9886\u57df\u4e00\u76f4\u5904\u4e8e\u9886\u5148\u5730\u4f4d\u7684\u4ea7\u54c1\u3002\u53ef\u4ee5\u8bf4Oracle\u6570\u636e\u5e93\u7cfb\u7edf\u662f\u76ee\u524d\u4e16\u754c\u4e0a\u6d41\u884c\u7684\u5173\u7cfb\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\uff0c\u7cfb\u7edf\u53ef\u79fb\u690d\u6027\u597d\u3001\u4f7f\u7528\u65b9\u4fbf\u3001\u529f\u80fd\u5f3a\uff0c\u9002\u7528\u4e8e\u5404\u7c7b\u5927\u3001\u4e2d\u3001\u5c0f\u3001\u5fae\u673a\u73af\u5883\u3002\u5b83\u662f\u4e00\u79cd\u9ad8\u6548\u7387\u3001\u53ef\u9760\u6027\u597d\u7684 \u9002\u5e94\u9ad8\u541e\u5410\u91cf\u7684\u6570\u636e\u5e93\u89e3\u51b3\u65b9\u6848\u3002
ORACLE\u6570\u636e\u5e93\u7cfb\u7edf\u662f\u7f8e\u56fdORACLE\u516c\u53f8(\u7532\u9aa8\u6587)\u63d0\u4f9b\u7684\u4ee5\u5206\u5e03\u5f0f\u6570\u636e\u5e93\u4e3a\u6838\u5fc3\u7684\u4e00\u7ec4\u8f6f\u4ef6\u4ea7\u54c1\uff0c\u662f\u76ee\u524d\u6700\u6d41\u884c\u7684\u5ba2\u6237/\u670d\u52a1\u5668(CLIENT/SERVER)\u6216B/S\u4f53\u7cfb\u7ed3\u6784\u7684\u6570\u636e\u5e93\u4e4b\u4e00\u3002\u6bd4\u5982SilverStream\u5c31\u662f\u57fa\u4e8e\u6570\u636e\u5e93\u7684\u4e00\u79cd\u4e2d\u95f4\u4ef6\u3002ORACLE\u6570\u636e\u5e93\u662f\u76ee\u524d\u4e16\u754c\u4e0a\u4f7f\u7528\u6700\u4e3a\u5e7f\u6cdb\u7684\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\uff0c\u4f5c\u4e3a\u4e00\u4e2a\u901a\u7528\u7684\u6570\u636e\u5e93\u7cfb\u7edf\uff0c\u5b83\u5177\u6709\u5b8c\u6574\u7684\u6570\u636e\u7ba1\u7406\u529f\u80fd;\u4f5c\u4e3a\u4e00\u4e2a\u5173\u7cfb\u6570\u636e\u5e93\uff0c\u5b83\u662f\u4e00\u4e2a\u5b8c\u5907\u5173\u7cfb\u7684\u4ea7\u54c1;\u4f5c\u4e3a\u5206\u5e03\u5f0f\u6570\u636e\u5e93\u5b83\u5b9e\u73b0\u4e86\u5206\u5e03\u5f0f\u5904\u7406\u529f\u80fd\u3002\u4f46\u5b83\u7684\u6240\u6709\u77e5\u8bc6\uff0c\u53ea\u8981\u5728\u4e00\u79cd\u673a\u578b\u4e0a\u5b66\u4e60\u4e86ORACLE\u77e5\u8bc6\uff0c\u4fbf\u80fd\u5728\u5404\u79cd\u7c7b\u578b\u7684\u673a\u5668\u4e0a\u4f7f\u7528\u5b83\u3002
Oracle\u6570\u636e\u5e93\u6700\u65b0\u7248\u672c\u4e3aOracle Database 12c\u3002Oracle\u6570\u636e\u5e9312c \u5f15\u5165\u4e86\u4e00\u4e2a\u65b0\u7684\u591a\u627f\u79df\u65b9\u67b6\u6784\uff0c\u4f7f\u7528\u8be5\u67b6\u6784\u53ef\u8f7b\u677e\u90e8\u7f72\u548c\u7ba1\u7406\u6570\u636e\u5e93\u4e91\u3002\u6b64\u5916\uff0c\u4e00\u4e9b\u521b\u65b0\u7279\u6027\u53ef\u6700\u5927\u9650\u5ea6\u5730\u63d0\u9ad8\u8d44\u6e90\u4f7f\u7528\u7387\u548c\u7075\u6d3b\u6027\uff0c\u5982Oracle Multitenant\u53ef\u5feb\u901f\u6574\u5408\u591a\u4e2a\u6570\u636e\u5e93\uff0c\u800cAutomatic Data Optimization\u548cHeat Map\u80fd\u4ee5\u66f4\u9ad8\u7684\u5bc6\u5ea6\u538b\u7f29\u6570\u636e\u548c\u5bf9\u6570\u636e\u5206\u5c42\u3002\u8fd9\u4e9b\u72ec\u4e00\u65e0\u4e8c\u7684\u6280\u672f\u8fdb\u6b65\u518d\u52a0\u4e0a\u5728\u53ef\u7528\u6027\u3001\u5b89\u5168\u6027\u548c\u5927\u6570\u636e\u652f\u6301\u65b9\u9762\u7684\u4e3b\u8981\u589e\u5f3a\uff0c\u4f7f\u5f97Oracle\u6570\u636e\u5e9312c \u6210\u4e3a\u79c1\u6709\u4e91\u548c\u516c\u6709\u4e91\u90e8\u7f72\u7684\u7406\u60f3\u5e73\u53f0\u3002
检查你的NetManager，看是否是你的那个服务命名配置丢失了。
扩展阅读：oracle ora 12170 tns ... tnscould not resolve ... ora12154tns could not ... oracle invalid character ... ora 12514 tns listener ... oracle initialization ... oracle error 12154 ... ora12560 tns protocol ... plsql ora-12154 ...
