initial_models.py

from django.db import models


class MyTable(models.Model):
    field_one = models.CharField(max_length=5000, blank=True, null=False, default="")
    field_one = models.IntegerField(default=0)

    class Meta:
        managed = False

output

/app # python manage.py makemigrations test
Migrations for 'test':
  test/migrations/0001_initial.py
    - Create model MyTable
/app # python manage.py makemigrations test
Migrations for 'test':
  test/migrations/0002_auto_20200712_2222.py
    - Change Meta options on mytable
    
/app # python manage.py sqlmigrate test 0001
BEGIN;
--
-- Create model MyTable
--
COMMIT;
/app # python manage.py sqlmigrate test 0002
BEGIN;
--
-- Change Meta options on mytable
--
COMMIT;

test-migrations-0001_initial.py

# Generated by Django 2.2.13 on 2020-07-12 22:22

from django.db import migrations, models


class Migration(migrations.Migration):

    initial = True

    dependencies = [
    ]

    operations = [
        migrations.CreateModel(
            name='MyTable',
            fields=[
                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
                ('field_one', models.IntegerField(default=0)),
            ],
            options={
                'managed': False,
            },
        ),
    ]

test-migrations-0002_auto_20200712_2222.py

# Generated by Django 2.2.13 on 2020-07-12 22:22

from django.db import migrations


class Migration(migrations.Migration):

    dependencies = [
        ('test', '0001_initial'),
    ]

    operations = [
        migrations.AlterModelOptions(
            name='mytable',
            options={},
        ),
    ]

updated_models.py

from django.db import models


class MyTable(models.Model):
    field_one = models.CharField(max_length=5000, blank=True, null=False, default="")
    field_one = models.IntegerField(default=0)