What should be considered when modifying field names in Oracle?

When changing a field name in Oracle, it is important to keep in mind the following points:

1. Ensure the syntax for changing column names is correct by using the ALTER TABLE statement. The syntax is: ALTER TABLE table_name RENAME COLUMN old_column_name TO new_column_name;
2. Make sure that the new field name does not duplicate with the existing field names: The new field name should not duplicate with the field names already existing in the table, otherwise it will cause an error.
3. Ensure that changing the field name does not affect existing data: Before changing the field name, make sure that it is not used as any constraint, index, or other related object in the database to avoid data loss or issues with connectivity.
4. Make sure to update related stored procedures, triggers, etc. after modifying field names: If changing a field name will impact related stored procedures, triggers, or other objects, it is necessary to update these accordingly to maintain database consistency.
5. Ensure to update the application code after changing the field name: After modifying the field name, it is necessary to update the application code accordingly to ensure that the application can access and handle the new field name correctly.