It is not easy to override django so that the Oracle driver does not use NVARCHAR2. So here is a very simple package to force usage of VARCHAR2 when creating the database fields.
pip install git+https://github.com/manelclos/django-oracle-backend.git#egg=django-oracle-backend
As reported in issue #1 this seems to still be usable.
Add it to your DATABASES configuration, Django will init the classes, see how to use it in the Django documentation: https://docs.djangoproject.com/en/3.1/ref/databases/#subclassing-the-built-in-database-backends
mysite/
...
custom_oracle_engine/
__init__.py
base.py
from django.db.backends.oracle import base
class DatabaseWrapper(base.DatabaseWrapper):
data_types = base.DatabaseWrapper.data_types.copy()
data_types.update({
'CharField': 'VARCHAR2(%(max_length)s)',
'CommaSeparatedIntegerField': 'VARCHAR2(%(max_length)s)',
'FileField': 'VARCHAR2(%(max_length)s)',
'FilePathField': 'VARCHAR2(%(max_length)s)',
'IPAddressField': 'VARCHAR2(15)',
'GenericIPAddressField': 'VARCHAR2(39)',
'SlugField': 'VARCHAR2(%(max_length)s)',
'TextField': 'CLOB',
'URLField': 'VARCHAR2(%(max_length)s)',
'UUIDField': 'VARCHAR2(32)',
})DATABASES = {
'default': {
'ENGINE': 'custom_oracle_engine',
'NAME': 'XXX',
'USER': 'XXX',
'PASSWORD': 'XXX',
'HOST': 'XXX',
'PORT': '1521',
}
}
More documentation can be found here
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