How do I fix ORA 12547 TNS lost contact when trying to connect to Oracle?
Usually the above operation should fix the issue but I suggest continue investigating privileges of other files to avoid further possible problems. As the matter of fact these special rights of Oracle binaries are set by $ORACLE_HOME/root.sh script on Unix / Linux after the Oracle installation.
How do I find my Dbca?
To start DBCA on a Microsoft Windows operating system, click Start, select Programs (or All Programs), then Oracle – HOME_NAME, then Configuration and Migration Tools, and then Database Configuration Assistant. The dbca utility is typically located in the ORACLE_HOME /bin directory.
What is Dbca silent mode?
DBCA Silent Mode Delete Database You can use DBCA to delete database from a Linux server. Use below command to run DBCA in silent mode and delete a database.
How do I open a Dbca file in Linux?
To start DBCA, connect as the installation owner account (for example, oracle ) to one of your nodes where Oracle RAC is installed, load SSH keys into memory, and enter the command dbca from the $ORACLE_HOME/bin directory.
How do I check my TNS Listener status?
Do the following:
- Log on to the host where the Oracle database resides.
- Change to the following directory: Solaris: Oracle_HOME/bin. Windows: Oracle_HOME\bin.
- To start the listener service, type the following command: Solaris: lsnrctl START. Windows: LSNRCTL.
- Repeat step 3 to verify that the TNS listener is running.
What is Dbca command?
Database Configuration Assistant (DBCA) : Creating Databases in Silent Mode. In addition to creating databases, the DBCA can be used to modify or delete them, as well as managing templates and pluggable databases in Oracle 12c.
How do I delete Dbca database?
You can use Database Configuration Assistant (DBCA) to delete a database….To delete a database using DBCA:
- Start DBCA as described in “Starting DBCA”.
- In the Database Operation window, select Delete Database and click Next.
- Select the database to delete and click Next.
What is the cause of ora-12547 TNS lost contact error?
ORA-12547: TNS:lost contact error could be due to any of the following reasons:- Incorrect permissions on the ORACLE executable. Insufficient ulimit setting for stack. $ORACLE_HOME/rdbms/lib/config.o is 0 bytes.
What does Oracle error code ora-12547 mean?
The Oracle docs note this on the ora-12547 error: ORA-12547: TNS: lost contact Cause: Partner has unexpectedly gone away, usually during process startup. Action: Investigate partner application for abnormal termination.
Why is my contact number not showing up in Oracle?
ORA-12547: TNS:lost contact There can be different reasons of this issue, but usually the problem is in wrong privileges/ownership of some Oracle binaries located in $ORACLE_HOME/bin directory. Perhaps, Oracle databasebinaries were installed / linked not correctly or something or somebody has changed the files’ ownership.
How to diagnose TNS lost contact error?
The “TNS lost contact error is most commonly a network error, and you can diagnose it by following my notes on troubleshooting sql*net connectivity errors. Orac le documentation offers information on ORA-12547 regarding it’s occurrence after installing 10.1.0.5.0 patchset.
