When you install Oracle Database, some options are enabled and others are disabled. If you want to enable or disable a particular database feature for an Oracle home, then shut down the database and use the chopt tool.
The chopt tool is a command-line utility that is located in the ORACLE_HOME/bin directory. The syntax for chopt is:
chopt [ enable | disable] db_option
The possible values for db_option are described in the following table:
| Value | Description |
|---|---|
| dm | Oracle Data Mining RDBMS Files |
| dv | Oracle Database Vault |
| lbac | Oracle Label Security |
| olap | Oracle OLAP |
| partitioning | Oracle Partitioning |
| rat | Oracle Real Application Testing |
| ode_net | Oracle Database Extensions for .NET 1.x |
| ode_net_2 | Oracle Database Extensions for .NET 2.0 |
To enable the Oracle Label Security option in your Oracle binary files, use the following command:
cd %ORACLE_HOME%
srvctl stop database -d myDb
chopt enable lbac
srvctl start database -d myDb