mysql – Django数据库迁移错误：重复键
内容导读
互联网集市收集整理的这篇技术教程文章主要介绍了mysql – Django数据库迁移错误：重复键，小编现在分享给大家，供广大互联网技能从业者学习和参考。文章包含5474字，纯文字阅读大概需要8分钟。
内容图文
我正在努力迁移数据库,我不知道为什么我会收到此错误.有谁知道如何解决这一问题？在此之前,我使用mysql创建了一个新数据库并授予用户访问权限.我以前有一个工作数据库,但应用程序无法正常工作(将OSX升级到El Capitan),所以我重新编写了它.我不确定我是否正确创建了新数据库.
> (env)DNab4046b2:VisualGenomeDev gmaister$python manage.py migrate
> /Users/gmaister/Desktop/VisualGenomeDev/env/lib/python2.7/site-packages/django/test/_doctest.py:59:
> RemovedInDjango18Warning: The django.test._doctest module is
> deprecated; use the doctest module from the Python standard library
> instead. RemovedInDjango18Warning)
>
> /Users/gmaister/Desktop/VisualGenomeDev/env/lib/python2.7/site-packages/django/test/simple.py:27:
> RemovedInDjango18Warning: The django.test.simple module and
> DjangoTestSuiteRunner are deprecated; use
> django.test.runner.DiscoverRunner instead. RemovedInDjango18Warning)
>
> Operations to perform: Synchronize unmigrated apps: lockdown,
> django_extensions, corsheaders, rest_framework Apply all migrations:
> hits, sessions, V6W, djcelery, contenttypes, auth, sites, admin,
> DataAnalysis, RegionAnnotations, common, UserManagement, Sentences,
> Clusters, Evaluation, Canonicalization Synchronizing apps without
> migrations: Creating tables... Installing custom SQL...
> Installing indexes... Running migrations: Applying
> RegionAnnotations.0005_auto_20150716_1133...Traceback (most recent
> call last): File "manage.py", line 10, in <module>
> execute_from_command_line(sys.argv) File "/Users/gmaister/Desktop/VisualGenomeDev/env/lib/python2.7/site-packages/django/core/management/__init__.py",
> line 385, in execute_from_command_line
> utility.execute() File "/Users/gmaister/Desktop/VisualGenomeDev/env/lib/python2.7/site-packages/django/core/management/__init__.py",
> line 377, in execute
> self.fetch_command(subcommand).run_from_argv(self.argv) File "/Users/gmaister/Desktop/VisualGenomeDev/env/lib/python2.7/site-packages/django/core/management/base.py",
> line 288, in run_from_argv
> self.execute(*args, **options.__dict__) File "/Users/gmaister/Desktop/VisualGenomeDev/env/lib/python2.7/site-packages/django/core/management/base.py",
> line 338, in execute
> output = self.handle(*args, **options) File "/Users/gmaister/Desktop/VisualGenomeDev/env/lib/python2.7/site-packages/django/core/management/commands/migrate.py",
> line 160, in handle
> executor.migrate(targets, plan, fake=options.get("fake", False)) File
> "/Users/gmaister/Desktop/VisualGenomeDev/env/lib/python2.7/site-packages/django/db/migrations/executor.py",
> line 63, in migrate
> self.apply_migration(migration, fake=fake) File "/Users/gmaister/Desktop/VisualGenomeDev/env/lib/python2.7/site-packages/django/db/migrations/executor.py",
> line 97, in apply_migration
> migration.apply(project_state, schema_editor) File "/Users/gmaister/Desktop/VisualGenomeDev/env/lib/python2.7/site-packages/django/db/migrations/migration.py",
> line 107, in apply
> operation.database_forwards(self.app_label, schema_editor, project_state, new_state) File
> "/Users/gmaister/Desktop/VisualGenomeDev/env/lib/python2.7/site-packages/django/db/migrations/operations/fields.py",
> line 131, in database_forwards
> schema_editor.alter_field(from_model, from_field, to_field) File "/Users/gmaister/Desktop/VisualGenomeDev/env/lib/python2.7/site-packages/django/db/backends/schema.py",
> line 509, in alter_field
> self._alter_field(model, old_field, new_field, old_type, new_type, old_db_params, new_db_params, strict) File
> "/Users/gmaister/Desktop/VisualGenomeDev/env/lib/python2.7/site-packages/django/db/backends/schema.py",
> line 692, in _alter_field
> "extra": "", File "/Users/gmaister/Desktop/VisualGenomeDev/env/lib/python2.7/site-packages/django/db/backends/schema.py",
> line 98, in execute
> cursor.execute(sql, params) File "/Users/gmaister/Desktop/VisualGenomeDev/env/lib/python2.7/site-packages/django/db/backends/utils.py",
> line 81, in execute
> return super(CursorDebugWrapper, self).execute(sql, params) File "/Users/gmaister/Desktop/VisualGenomeDev/env/lib/python2.7/site-packages/django/db/backends/utils.py",
> line 65, in execute
> return self.cursor.execute(sql, params) File "/Users/gmaister/Desktop/VisualGenomeDev/env/lib/python2.7/site-packages/django/db/utils.py",
> line 94, in __exit__
> six.reraise(dj_exc_type, dj_exc_value, traceback) File "/Users/gmaister/Desktop/VisualGenomeDev/env/lib/python2.7/site-packages/django/db/backends/utils.py",
> line 65, in execute
> return self.cursor.execute(sql, params) File "/Users/gmaister/Desktop/VisualGenomeDev/env/lib/python2.7/site-packages/django/db/backends/mysql/base.py",
> line 128, in execute
> return self.cursor.execute(query, args) File "/Library/Python/2.7/site-packages/MySQLdb/cursors.py", line 205, in
> execute
> self.errorhandler(self, exc, value) File "/Library/Python/2.7/site-packages/MySQLdb/connections.py", line 36,
> in defaulterrorhandler
> raise errorclass, errorvalue django.db.utils.OperationalError: (1061, "Duplicate key name
> 'RegionAnnotations_regionannotation_phrase_ffbaf771d98f6cc_uniq'")
解决方法:
我刚刚遇到这个错误,我可以通过使用这些SQL命令删除错误中指定的索引来解决它：
mysql> DROP INDEX [index_name] ON [table_name];
所以在你的情况下：
mysql> DROP INDEX RegionAnnotations_regionannotation_phrase_ffbaf771d98f6cc_uniq ON RegionAnnotations_regionannotation;
内容总结
以上是互联网集市为您收集整理的mysql – Django数据库迁移错误：重复键全部内容，希望文章能够帮你解决mysql – Django数据库迁移错误：重复键所遇到的程序开发问题。 如果觉得互联网集市技术教程内容还不错，欢迎将互联网集市网站推荐给程序员好友。
内容备注
版权声明：本文内容由互联网用户自发贡献，该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容， 请发送邮件至 gblab@vip.qq.com 举报，一经查实，本站将立刻删除。
内容手机端
扫描二维码推送至手机访问。
来源：【匿名】