python manage.py migrate 返回 django.db.utils.ProgrammingError: (1064 ... error

Question

我是一个新手，我正在尝试使用mysql数据库在Windows 8使用Python 3和Django 1.8.6创建一个 django 项目

当我执行python manage.py migrate我得到一个错误

django.db.utils.ProgrammingError: (1064 ....

我已经交叉检查了我的 settings.py 文件和所有内容。 事实上，连接已建立，有时它会成功创建表django_content_type和django_migrations ，然后出现此错误，有时没有创建这些表本身，我会收到此错误。

打印的堆栈跟踪结束如下：

django.db.utils.ProgrammingError: (1064, "You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '%s' at line 1")

我还提到并尝试按照本站点其他类似查询中的说明（已安装 mysql-connector-python-2.1.3）进行操作，但似乎没有任何效果

完整的堆栈跟踪如下：

D:\pythonLearn\learningDjango\mysite>python manage.py migrate
Traceback (most recent call last):
File "C:\Python34\lib\site-packages\django\db\backends\utils.py", line 64, in execute return self.cursor.execute(sql, params)
File "C:\Python34\lib\site-packages\django\db\backends\mysql\base.py", line 124, in execute return self.cursor.execute(query, args)
File "C:\Python34\lib\site-packages\mysql_python-1.2.4-py3.4-win-md64.egg\MySQLdb\cursors.py", line 207, in execute self.errorhandler(self, exc, value)
File "C:\Python34\lib\site-packages\mysql_python-1.2.4-py3.4-win-md64.egg\MySQLdb\connections.py", line 37, in defaulterrorhandler raise errorvalue
File "C:\Python34\lib\site-packages\mysql_python-1.2.4-py3.4-win-md64.egg\MySQLdb\cursors.py", line 192, in execute r = self._query(query)
File "C:\Python34\lib\site-packages\mysql_python-1.2.4-py3.4-win-md64.egg\MySQLdb\cursors.py", line 356, in _query rowcount = self._do_query(q)
File "C:\Python34\lib\site-packages\mysql_python-1.2.4-py3.4-win-md64.egg\MySQLdb\cursors.py", line 320, in _do_query db.query(q)
_mysql_exceptions.ProgrammingError: (1064, "You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '%s' at line 1")

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

Traceback (most recent call last):
File "manage.py", line 10, in <module>
execute_from_command_line(sys.argv)
File "C:\Python34\lib\site-packages\django\core\management\__init__.py", line 354, in execute_from_command_line utility.execute()
File "C:\Python34\lib\site-packages\django\core\management\__init__.py", line 346, in execute self.fetch_command(subcommand).run_from_argv(self.argv)
File "C:\Python34\lib\site-packages\django\core\management\base.py", line 394, in run_from_argv self.execute(*args, **cmd_options)
File "C:\Python34\lib\site-packages\django\core\management\base.py", line 445, in execute output = self.handle(*args, **options)
File "C:\Python34\lib\site-packages\django\core\management\commands\migrate.py", line 93, in handle executor = MigrationExecutor(connection, self.migration_progress_callback)
File "C:\Python34\lib\site-packages\django\db\migrations\executor.py", line 19, in __init__self.loader = MigrationLoader(self.connection)
File "C:\Python34\lib\site-packages\django\db\migrations\loader.py", line 47, in __init__self.build_graph()
File "C:\Python34\lib\site-packages\django\db\migrations\loader.py", line 188, in build_graph   self.applied_migrations = recorder.applied_migrations()
File "C:\Python34\lib\site-packages\django\db\migrations\recorder.py", line 59, in applied_migrations self.ensure_schema()
File "C:\Python34\lib\site-packages\django\db\migrations\recorder.py", line 53, in ensure_schema editor.create_model(self.Migration)
File "C:\Python34\lib\site-packages\django\db\backends\base\schema.py", line 289, in create_model self.deferred_sql.extend(self._model_indexes_sql(model))
File "C:\Python34\lib\site-packages\django\db\backends\mysql\schema.py", line 56, in _model_indexes_sql self.connection.cursor(), model._meta.db_table
File "C:\Python34\lib\site-packages\django\db\backends\mysql\introspection.py", line 142, in get_storage_engine
"WHERE table_name = %s", [table_name])
File "C:\Python34\lib\site-packages\django\db\backends\utils.py", line 79, in execute return super(CursorDebugWrapper, self).execute(sql, params)
File "C:\Python34\lib\site-packages\django\db\backends\utils.py", line 64, in execute return self.cursor.execute(sql, params)
File "C:\Python34\lib\site-packages\django\db\utils.py", line 98, in __exit__ six.reraise(dj_exc_type, dj_exc_value, traceback)
File "C:\Python34\lib\site-packages\django\utils\six.py", line 658, in reraise raise value.with_traceback(tb)
File "C:\Python34\lib\site-packages\django\db\backends\utils.py", line 64, in execute return self.cursor.execute(sql, params)
File "C:\Python34\lib\site-packages\django\db\backends\mysql\base.py", line 124, in execute return self.cursor.execute(query, args)
File "C:\Python34\lib\site-packages\mysql_python-1.2.4-py3.4-win-amd64.egg\MySQLdb\cursors.py", line 207, in execute self.errorhandler(self, exc, value)
File "C:\Python34\lib\site-packages\mysql_python-1.2.4-py3.4-win-amd64.egg\MySQLdb\connections.py", line 37, in defaulterrorhandler raise errorvalue
File "C:\Python34\lib\site-packages\mysql_python-1.2.4-py3.4-win-amd64.egg\MySQLdb\cursors.py", line 192, in execute r = self._query(query)
File "C:\Python34\lib\site-packages\mysql_python-1.2.4-py3.4-win-amd64.egg\MySQLdb\cursors.py", line 356, in _query rowcount = self._do_query(q)
File "C:\Python34\lib\site-packages\mysql_python-1.2.4-py3.4-win-amd64.egg\MySQLdb\cursors.py", line 320, in _do_query db.query(q)
django.db.utils.ProgrammingError: (1064, "You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '%s' at line 1")

Answer 1

django.db.utils.ProgrammingError: (1064, “您的 SQL 语法有错误；请检查与您的 MySQL 服务器版本相对应的手册，以获取在第 1 行附近的 '(6) NOT NULL)' 附近使用的正确语法” )

需要将mysql升级到5.6或更高版本。 这是由于 DATETIME(6) 引起的。 支持 5.6 或 lated 版本。

参考https://docs.djangoproject.com/en/2.1/ref/databases/#fractional-seconds-support-for-time-and-datetime-fields

Answer 2

您的错误消息说...

...要在第 1 行的“%s”附近使用正确的语法

这意味着您的程序传递给 MySQL 的查询包含文本字符串%s 。 在我看来，您的程序没有将值替换到该字符串中。 它必须在尝试使用字符串作为查询之前这样做。

这种在查询中使用占位符的业务很常见。 你的查询有可能是这样的吗？

 INSERT INTO names (name) VALUES (%s)

它需要这样说

 INSERT INTO names (name) VALUES ('Ban Ki Moon')

Answer 3

正如@krishna chandak 所说，由于DATETIME(6) ，您应该升级MySQL版本。

如何更新 MySQL 版本：

确保 yum 是最新的

yum update yum

安装 yum-utils（它提供 yum-config-manager）

yum install yum-utils

备份：将所有数据库转储到 all_dbs.sql

mysqldump --lock-all-tables --all-databases -uroot -yourpassword >/root/all_dbs.sql

停止 MySQL 守护进程

service mysqld stop

下载最新的 MySQL

------ 适用于 CentOS 6

wget https://dev.mysql.com/get/mysql80-community-release-el6-2.noarch.rpm
sudo rpm -Uvh mysql80-community-release-el6-2.noarch.rpm

------ 适用于 CentOS 7

wget https://dev.mysql.com/get/mysql80-community-release-el7-3.noarch.rpm
sudo rpm -Uvh mysql80-community-release-el7-3.noarch.rpm

删除旧版本并安装 5.7 版本

sudo yum-config-manager --enable mysql57-community
sudo yum-config-manager --disable mysql80-community
yum remove mysql55-server
yum install mysql57-server
yum update mysql

启动 MySQL

service mysqld start

如果出现任何错误，则必须删除 etc/my.cnf 中已弃用的变量

升级现有数据库

mysql_upgrade -uroot -p

如果您使用 *.sock 出错

通过添加更改配置/etc/my.cnf

datadir=/var/lib/mysql

并评论这个字符串

# socket=/var/lib/mysql/mysql.sock

然后执行更新数据库的步骤并将配置返回到以前的状态。