How to check the database encoding in PL/SQL?

In PL/SQL, you can view the database’s encoding through the following methods:

1. Query the NLS_DATABASE_PARAMETERS view:
2. Retrieve the value for the parameter ‘NLS_CHARACTERSET’ from the table NLS_DATABASE_PARAMETERS.
3. Query using the V$NLS_PARAMETERS view:
4. Choose the value for the parameter ‘NLS_CHARACTERSET’ from the V$NLS_PARAMETERS table.

Both of these views contain various parameter settings information for the database, including character set encoding. By using the above query statement, you will obtain information about the database’s character set encoding. In particular, the NLS_CHARACTERSET parameter represents the database’s character set encoding.

Please note that these query results may require specific permissions to access. If you do not have sufficient permissions, you may need to contact a database administrator with higher privileges to obtain this information.