Error validating database 121 sql error opening connection

Posted by / 26-Jan-2017 15:32

For nearly half of that time, Ask Tom has been there.Here is a look back at those years, and here's to the next 40! i'm running oracle on standalone computer at used to work properly but from couple of days i'm getting error stating "ORA-12560: TNS:protocol adapter error " what should i do? (scott/tiger) sqlplus scott/tiger SQL*Plus: Release 10.1.0.4.0 - Production on Thu Sep 6 2007 Copyright (c) 1982, 2005, Oracle. Connected to: Oracle Database 10g Enterprise Edition Release 10.1.0.4.0 - Production With the Partitioning, OLAP and Data Mining options scott%ORA10GR1sqlplus scott/tiger SQL*Plus: Release 10.1.0.4.0 - Production on Thu Sep 6 2007 Copyright (c) 1982, 2005, Oracle. ERROR: ORA-12560: TNS:protocol adapter error Enter user-name: ERROR: ORA-12560: TNS:protocol adapter error Enter user-name: ERROR: ORA-12560: TNS:protocol adapter error SP2-0157: unable to CONNECT to ORACLE after 3 attempts, exiting SQL*Plus C:\Documents and Settings\tkytesqlplus scott/tiger SQL*Plus: Release 10.1.0.4.0 - Production on Thu Sep 6 2007 Copyright (c) 1982, 2005, Oracle. Connected to: Oracle Database 10g Enterprise Edition Release 10.1.0.4.0 - Production With the Partitioning, OLAP and Data Mining options scott%ORA10GR1B.

SQLServer Exception: Login failed for user 'USER_ID'.By default, the log files are located in the following directory: Oracle configuration assistant failures are noted at the bottom of the installation window.The configuration assistant interface displays additional information, if available.Note: A system error code is not the same as a Device Manager error code, a POST code, a STOP code, or a browser error code, even though the error numbers may sometimes be the same.Error Code 51: Windows cannot find the network path.

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During an installation, Oracle Universal Installer records all the actions that it performs in a log file.

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