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Why is my Oracle database not connecting to my computer?
The following are the common Oracle Database connection error codes, their causes, and suggested remedies. Cause: OracleService SID service, Oracle HOMENAME TNSListener service, or both are not running. Action: Ensure that both services are started.
How does a client connect to an Oracle Database?
An Oracle database is represented to clients as a service; that is, the database performs work on behalf of clients. The service name is included in the connect data part of the connect descriptor. To connect to a database service, clients use a connect descriptor that provides the location of the database and the name of the database service.
How to resolve Oracle connection errors from Cognos Business?
Running “tnsping ALIAS_NAME” from a command window obtains the client driver connection information from the current environment settings and then returns a success or failure message that indicates whether or not the ALIAS_NAME defines a valid Oracle connection. When successful the returned message will look like the following:
What causes a parameter file to be damaged in Oracle Database?
Cause: Parameter file (init.ora) or Windows services are damaged. These errors usually appear when the parameter file cannot be read by Oracle Database at database startup. Action: Delete and re-create the SID and services.
Both codes appear at startup Cause:Parameter file (init.ora) or Windows services are damaged. These errors usually appear when the parameter file cannot be read by Oracle Database at database startup. Action:Delete and re-create the SID and services.
How to find the root cause of an oracle hang?
There are several other ways to find the root cause of an Oracle hanging issue: Automatic Session History – Check ASH during the hang (if you have purchased the license): Report – Run a couple of STATSPACK or AWR snapshot during the hang and get an elapsed time report.
What is DBA _ users show Open but connection fails?
Account status in dba_users show open but connection fails as ‘account locked’. When connecting to the user via sqldevelope or sqlplus, we are getting user account is locked. This is for standby ADG database To view full details, sign in with your My Oracle Support account.
What to do when database hangs in Oracle 10g?
Back in Oracle 10g a hung database was a real problem, especially if the DBA could not connect via SQL*Plus to release the source of the hanging. In these cases, the DBA had few options other than to force-down the instance and warmstart it. There is a new feature in Oracle 11g SQL*Plus called the ‘prelim’ option.
Why is my Ora file not spawning in Oracle7?
This error is analogous to the following Oracle7 error: ORA-09352: Windows 32-bit Two-Task driver unable to spawn new ORACLE task . Action: Ensure that both services are started. Cause: tnsnames.ora and listener.ora files have not been correctly configured to use external procedures .
What causes a tnsname.ora file to be damaged?
Cause: tnsnames.ora and listener.ora files have not been correctly configured to use external procedures. Action: Reconfigure services. Cause: Parameter file (init.ora) or Windows services are damaged.