How to fix ORA 03113 end of file on communication channel?

How to fix ORA 03113 end of file on communication channel?

Solution 3:

1. Startup the instance in nomount: SQL> startup nomount.
2. Open database into mount state: alter database mount;
3. Clear the redo log files having issue due to power failure or unclean shutdown of database. SQL> alter database clear unarchived logfile group 1;
4. Shutdown the database and open it.

Where is the location of alert log file in Oracle 12c?

The alert log would be located in this example in /u01/app/oracle/diag/rdbms/vdb1/vdb1/trace and named alert_vdb1. log.

How do I view alert logs?

alert. log file is written to the directory specified by the background_dump_dest parameter. To view alert log, first you need to find it’s location using show parameter command. To view alert log you can use tail command with options and filename.

How do I clear a current redo log?

If the corrupt redo log file has not been archived, use the UNARCHIVED keyword in the statement. ALTER DATABASE CLEAR UNARCHIVED LOGFILE GROUP 3; This statement clears the corrupted redo logs and avoids archiving them. The cleared redo logs are available for use even though they were not archived.

How do I change my database to Noarchivelog?

Switching Database Archiving Mode

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

Can’t connect to the database ORA-01034 Oracle not available?

An ORA-01034 error is triggered due to the Oracle system not being available or started up. This could derive from the System Global Area (SGA) necessitating more storage space than what is currently being allocated for your Oracle database.

How do I create a database in Oracle?

To start or shut down Oracle Database:

1. Go to your Oracle Database server.
2. Start SQL*Plus at the command prompt: C:\> sqlplus /NOLOG.
3. Connect to Oracle Database with username SYSDBA: SQL> CONNECT / AS SYSDBA.
4. To start a database, enter: SQL> STARTUP [PFILE=path\filename]
5. To stop a database, enter: SQL> SHUTDOWN [mode]

Where is Oracle log file location?

By default, Oracle Database trace files and log files are stored in subdirectories of /u02/app/oracle/diag . Oracle Grid Infrastructure trace files and log files are stored in subdirectories of /u01/app/grid/diag .

Where is the alert log file in Oracle?

Location of the ALERT. LOG file[edit] log will be created in a directory below the value of the DIAGNOSTIC_DEST parameter: DIAGNOSTIC_DEST/diag/rdbms/DB_NAME/ORACLE_SID/trace. If this later parameter is not set, the alert. log file is created in the ORACLE_HOME/rdbms/trace directory.

What is Oracle alerts in Oracle Apps?

Oracle Alert facilitates the flow of information within your organization by letting you create entities called alerts to monitor your business information and to notify you of the information you want. You can define one of two types of alerts: an event alert or a periodic alert.