How to resolve garbled characters when importing SQL files in PL/SQL?

One possible reason for garbled characters when importing a SQL file in PL/SQL may be due to a mismatch between the encoding of the SQL file and the encoding of the database. Here are some possible solutions:

1. Check the encoding of the SQL file: Make sure the SQL file is saved in UTF-8 encoding, which is the most commonly used encoding.
2. Changing the database encoding: You can try changing the database encoding to UTF-8 so that it matches the encoding of the SQL file.
3. Convert using tools: You can use text editing tools or database tools to convert the encoding of SQL files to match the encoding used by the database.
4. Use database tools for importing: Some database tools have the capability to directly import SQL files and automatically handle encoding issues. You can try using these tools to import SQL files.

By following the above methods, the issue of garbled characters when importing an SQL file into PL/SQL should be resolved. If the problem persists, it is recommended to check the specific error message and conduct further investigation.