This method overrides django.db.backends.base.schema.BaseDatabaseSchemaEditor.column_sql.
This method overrides django.db.backends.base.schema.BaseDatabaseSchemaEditor.create_model.
This method overrides django.db.backends.oracle.schema.DatabaseSchemaEditor.delete_model.
This method overrides django.db.backends.oracle.schema.DatabaseSchemaEditor.remove_field.