About resolving oracle login: ora-12154: tns: unable to resolve the specified connection identifier

About solving oracle login: ora-12154: tns: unable to resolve the problem of the specified connection identifier ready May day to start learning oracle, so today I plan to install oracle 10g. After the installation is complete, test whether the job works normally. During installation, the global database configured is tmt. When you log on to www.2cto.com but use SQL Plus, the username is scott, the password is tiger, and the host string is tmt. But it always fails to log on, reporting that the ora-12154tns cannot parse the specified connection identifier. My TNSNAMES. ORA file has no tmt configuration. Therefore, for TNSNAMES. add the following configuration to the ORA file: TMT = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP) (HOST = YSGH6H9W2BXHOIL) (PORT = 1521 ))) (CONNECT_DATA = (SERVICE_NAME = tmt). Then, you can log in successfully. You can also use the Net Manager graphical interface to generate the file. Www.2cto.com 1,
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In this way, you can log on successfully !!! Author tree last month