无法创建 django_migrations 表(ORA-02000:缺少 ALWAYS 关键字)

问题描述

我正在使用数据库 Oracle 11g 在 Django-2.0.1 中启动一个项目，当我运行 $python manage.py migrate 时，出现错误 django.db.migrations.exceptions.MigrationSchemaMissing: Unable to create thedjango_migrations 表(ORA-02000:缺少 ALWAYS 关键字).您可以在下面看到完整的堆栈:

I'm starting a project in Django-2.0.1 with a database Oracle 11g, and when I run $python manage.py migrate, I get the error django.db.migrations.exceptions.MigrationSchemaMissing: Unable to create the django_migrations table (ORA-02000: missing ALWAYS keyword). You can see the full stack below:

   Traceback (most recent call last):
  File "/Users/user/anaconda3/lib/python3.6/site-packages/django/db/backends/utils.py", line 83, in _execute
    return self.cursor.execute(sql)
  File "/Users/user/anaconda3/lib/python3.6/site-packages/django/db/backends/oracle/base.py", line 500, in execute
    return self.cursor.execute(query, self._param_generator(params))
cx_Oracle.DatabaseError: ORA-02000: missing ALWAYS keyword

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/Users/user/anaconda3/lib/python3.6/site-packages/django/db/migrations/recorder.py", line 55, in ensure_schema
    editor.create_model(self.Migration)
  File "/Users/user/anaconda3/lib/python3.6/site-packages/django/db/backends/base/schema.py", line 298, in create_model
    self.execute(sql, params or None)
  File "/Users/user/anaconda3/lib/python3.6/site-packages/django/db/backends/base/schema.py", line 117, in execute
    cursor.execute(sql, params)
  File "/Users/user/anaconda3/lib/python3.6/site-packages/django/db/backends/utils.py", line 100, in execute
    return super().execute(sql, params)
  File "/Users/user/anaconda3/lib/python3.6/site-packages/django/db/backends/utils.py", line 68, in execute
    return self._execute_with_wrappers(sql, params, many=False, executor=self._execute)
  File "/Users/user/anaconda3/lib/python3.6/site-packages/django/db/backends/utils.py", line 77, in _execute_with_wrappers
    return executor(sql, params, many, context)
  File "/Users/user/anaconda3/lib/python3.6/site-packages/django/db/backends/utils.py", line 85, in _execute
    return self.cursor.execute(sql, params)
  File "/Users/user/anaconda3/lib/python3.6/site-packages/django/db/utils.py", line 89, in __exit__
    raise dj_exc_value.with_traceback(traceback) from exc_value
  File "/Users/user/anaconda3/lib/python3.6/site-packages/django/db/backends/utils.py", line 83, in _execute
    return self.cursor.execute(sql)
  File "/Users/user/anaconda3/lib/python3.6/site-packages/django/db/backends/oracle/base.py", line 500, in execute
    return self.cursor.execute(query, self._param_generator(params))
django.db.utils.DatabaseError: ORA-02000: missing ALWAYS keyword

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "manage.py", line 15, in <module>
    execute_from_command_line(sys.argv)
  File "/Users/user/anaconda3/lib/python3.6/site-packages/django/core/management/__init__.py", line 371, in execute_from_command_line
    utility.execute()
  File "/Users/user/anaconda3/lib/python3.6/site-packages/django/core/management/__init__.py", line 365, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/Users/user/anaconda3/lib/python3.6/site-packages/django/core/management/base.py", line 288, in run_from_argv
    self.execute(*args, **cmd_options)
  File "/Users/user/anaconda3/lib/python3.6/site-packages/django/core/management/base.py", line 335, in execute
    output = self.handle(*args, **options)
  File "/Users/user/anaconda3/lib/python3.6/site-packages/django/core/management/commands/migrate.py", line 200, in handle
    fake_initial=fake_initial,
  File "/Users/user/anaconda3/lib/python3.6/site-packages/django/db/migrations/executor.py", line 91, in migrate
    self.recorder.ensure_schema()
  File "/Users/user/anaconda3/lib/python3.6/site-packages/django/db/migrations/recorder.py", line 57, in ensure_schema
    raise MigrationSchemaMissing("Unable to create the django_migrations table (%s)" % exc)
django.db.migrations.exceptions.MigrationSchemaMissing: Unable to create the django_migrations table (ORA-02000: missing ALWAYS keyword)

这似乎是其他问题中描述的版本问题在 stackoverflow 中，但我不知道如何编辑用于创建 django_migrations 的脚本.我在迁移中没有找到它，我认为它是框架的表.有人知道如何解决这个问题吗?

This seems a version problem like described in other questions here in stackoverflow, but i don't know how to edit the script for the creation of django_migrations. I didn't find it in the migrations, I think it is a table of the framework. Someone know how to workaround this?

推荐答案

我在迁移过程中遇到了同样的问题.我将 Django 版本降级到 1.1 并更改了 Oracle 数据库的 base.py 中的一些代码，如 一个链接，现在工作正常.

I have faced the same issues during migration. I downgraded Django version to 1.1 and changed some codes in base.py for Oracle database as given in a link and it's working fine now.

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