What does not connected to Oracle mean?

ORA-03114: not connected to ORACLE. Cause: The connection between Client and Server process was broken. This may also happen if the external agent extproc crashes for some reason. Action: There was a communication error which requires further investigation. First, check for network problems and review the SQL*Net setup …

How do I fix Ora 03113 End of communication channel?

The proper fix is to get rid of the recovery files. You do that using RMAN, not SQLPLUS or ADRCI. Wait a long time and your archivelog (that was using up all that space) will be gone. So, you can shutdown/startup your database and be back in business.

How do I fix ORA 12547 TNS lost contact when trying to connect to Oracle?

ORA-12547: TNS: lost contact….

Change the Oracle users environment variable PATH to ensure that ‘ld’ is from /usr/ccs/bin.
Verify the following commands return the correct path /usr/ccs/bin.
If you chose to ‘ignore’ or ‘continue’ when prompted during the linking of the patchset then you can relink by doing the following:

What is sp2 0640 not connected?

This error indicates that the TNSNAMES. ora file was not created during the installation process. ora file which can be used as one of the methods for resolving a connection string. While creating the protect user, the script attempts to connect to the database using TNS to resolve the connection.

How do I change my database to Noarchivelog?

Procedure

Log in as OS user, oracle and enter the following commands: $ export ORACLE_SID=
To enable ARCHIVELOG mode status, enter the following SQL commands:
To check the ARCHIVELOG mode status, enter the following SQL command:

How do I view alert logs?

To view the alert log with a text editor: Connect to the database with SQL*Plus or another query tool, such as SQL Developer….To view the alert log with Enterprise Manager:

Access the Database Home page in Enterprise Manager.
Under Related Links, click Alert Log Contents.

How do you relink in Oracle home?

Relinking Oracle Database Client Binaries After Installation

Login as the Oracle Database Client owner user ( oracle ).
Set the ORACLE_HOME environment variable.
Go to the $ORACLE_HOME/bin directory:
Run the relink script with the as_installed option to relink the binaries.

What is Nolog in Sqlplus?

sqlplus /nolog – provides access to utilize sqlplus. The “/nolog” parameter means “start sqlplus, but do not log into a database” The environment variable ORACLE_SID provides the database name, the host is the local machine and the port is, by default, 1521.

How do I know if my database is in archivelog mode?

Checking ARCHIVELOG mode status

Log in as OS user oracle and enter the following commands: $ export ORACLE_SID= where is the name of the database $ sqlplus /nolog SQL> connect / as sysdba.
To check the ARCHIVELOG mode status, enter the following SQL command: SQL> archive log list;

How do you change from Noarchivelog mode to Archivelog mode?

Switching Database Archiving Mode

Shut down the database instance.
Backup the database.
Perform any operating system specific steps (optional).
Start up a new instance and mount, but do not open the database.
Put the database into archivelog mode.
Open the database.
Verify your database is now in archivelog mode.

Why is my ora-03114 not connected to Oracle error?

The “ORA-03114: Not Connected to Oracle” error is commonly found when there is a problem with the network connectivity. The docs note: ORA-03114 not connected to ORACLE Cause: A call to Oracle was attempted when no connection was established.

How to prevent Ora listener from connecting to Oracle?

The best way to prevent this issue is, prior to the creation of the database, modifying the SID_LIST section of the listener.ora and adding an entry to the yet-to-be-formed database, then reloading – this will establish a connection for the listener.

Why does my computer say not connected to Oracle?

Help Wanted! The “ORA-03114: Not Connected to Oracle” error is commonly found when there is a problem with the network connectivity. The docs note: Cause: A call to Oracle was attempted when no connection was established. Usually this happens because a user-written program has not logged on.

Why do I get Oracle Database error messages?

Since the upgrade to the 19C Oracle DB (before 12C) I receive randomly those ORA-03114 error message’s. Before the upgrade I never received it. Any idea’s what exactly why those error messages pops up suddenly and what changes needs to be done?

What does not connected to Oracle mean? ORA-03114: not connected to ORACLE. Cause: The connection between Client and Server process was broken. This may also happen if the external agent extproc crashes for some reason. Action: There was a communication error which requires further investigation. First, check for network problems and review the SQL*Net setup…