How to change the character set of an Oracle database?

2 years ago
Olivia Parker
1 minute

To change the character set of an Oracle database, you can follow the steps below:

  1. Firstly, connect to the Oracle database using SQL*Plus or any other database client.
  2. Run the following command to view the current database character set:
  3. Choose every entry from the nls_database_parameters where the parameter is ‘NLS_CHARACTERSET’.
  4. To change the character set, first backup the database, then use the following command to create a new empty database:
  5. Create a database with the name new_database_name and set the character set to new_character_set.
  6. new_database_name is the name of the new database and new_character_set is the name of the new character set.
  7. Import the data from the original database into the new database.
  8. Update the connection strings and configuration files of the application to connect to the new database.
  9. Update all relevant objects in the database, such as tables, views, stored procedures, etc., to accommodate the new character set.
  10. Test if the application is functioning correctly.

Before changing the character set, please make sure to backup the database and understand the potential implications of modifying the character set.

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