syncdb命令工作不正常

Question

我正在尝试运行现有项目。我已还原了数据库并安装了所有必需的依赖项。While运行syncdb时，出现以下错误。你知道吗

[root@localhost ]# python manage.py syncdb
Traceback (most recent call last):
  File "manage.py", line 11, in <module>
    execute_manager(settings)
  File "/usr/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 459, in execute_manager
    utility.execute()
  File "/usr/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 382, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/usr/local/lib/python2.7/site-packages/django/core/management/base.py", line 196, in run_from_argv
    self.execute(*args, **options.__dict__)
  File "/usr/local/lib/python2.7/site-packages/django/core/management/base.py", line 231, in execute
    self.validate()
  File "/usr/local/lib/python2.7/site-packages/django/core/management/base.py", line 266, in validate
    num_errors = get_validation_errors(s, app)
  File "/usr/local/lib/python2.7/site-packages/django/core/management/validation.py", line 103, in get_validation_errors
    connection.validation.validate_field(e, opts, f)
  File "/usr/local/lib/python2.7/site-packages/django/db/backends/mysql/validation.py", line 14, in validate_field
    db_version = self.connection.get_server_version()
  File "/usr/local/lib/python2.7/site-packages/django/db/backends/mysql/base.py", line 415, in get_server_version
    self.cursor().close()
  File "/usr/local/lib/python2.7/site-packages/debug_toolbar/utils/tracking/__init__.py", line 9, in wrapped
    return callback(original, *args, **kwargs)
  File "/usr/local/lib/python2.7/site-packages/debug_toolbar/panels/sql.py", line 21, in cursor
    result = original(self)
  File "/usr/local/lib/python2.7/site-packages/django/db/backends/__init__.py", line 306, in cursor
    cursor = self.make_debug_cursor(self._cursor())
  File "/usr/local/lib/python2.7/site-packages/django/db/backends/mysql/base.py", line 387, in _cursor
    self.connection = Database.connect(**kwargs)
  File "/usr/local/lib/python2.7/site-packages/MySQL_python-1.2.3-py2.7-linux-i686.egg/MySQLdb/__init__.py", line 81, in Connect
    return Connection(*args, **kwargs)
  File "/usr/local/lib/python2.7/site-packages/MySQL_python-1.2.3-py2.7-linux-i686.egg/MySQLdb/connections.py", line 215, in __init__
    self.set_character_set(charset)
  File "/usr/local/lib/python2.7/site-packages/MySQL_python-1.2.3-py2.7-linux-i686.egg/MySQLdb/connections.py", line 294, in set_character_set
    super(Connection, self).set_character_set(charset)
_mysql_exceptions.ProgrammingError: (2014, "Commands out of sync; you can't run this command now")

Answer 1

正如@Kalinakov提到的，这个错误是由于在代码中不正确地使用了游标造成的。请搜索游标.执行然后开始调试。你知道吗

也看看下面的帖子，其中提到了为什么会出现这种错误，以及解决方法是什么- Ways to avoid MySQLdb's "Commands out of sync; you can't run this command now" (2014) exception

Answer 2

让我们开始一个小的调试之旅：

• 1）数据库配置是否正确？ 让我们在没有mySQL数据库和SQlite的情况下尝试一下。如果没有任何编程错误-SQLite将直接启动并同步数据库。为此你得去你的办公室 settings.py并将数据库重新配置为如下所示：

  DATABASES = {
  'default': {
  'ENGINE': 'django.db.backends.sqlite3', 
  'NAME': 'database.db',                      
  
  'USER': '',
  'PASSWORD': '',
  'HOST': '',                     
  'PORT': '',                     
  

  } }

• 2）现在，运行syncdb，看看它是否有效。如果现在可以使用，您可能需要重新配置数据库：name、password、host和port。如果SQlite不工作-请回到这里告诉我们有确切的错误消息。

Answer 3

你在复合sql语句吗？你知道吗

例如：游标.执行（'show databases；show tables；'）？你知道吗

如果是这样，试着把它们分开：

你知道吗游标.执行('') 光标.关闭 重新连接 重复