配置django连接SQL Server 2005遇到的问题解决

在项目可能需要sql server，顺便实验了下能否和django集成

总体分三步：

1 安装sql server 2005 并且在odbc配置中测试

遇到1433端口，服务启动等各种问题，参考网上文章解决。

SQL Server ODBC数据源连接失败问题总结 http://wenku.baidu.com/view/ff191749f7ec4afe04a1dfe6.html

2 安装pyodbc,在命令行中测试

2.1、下载并安装pyodbc

下载地址:http://code.google.com/p/pyodbc/downloads/list

2.2、访问SqlServer

>>> import pyodbc

>>>cnxn = pyodbc.connect('DRIVER={SQL Server};SERVER=192.168.1.100\\sql;DATABASE=testDB;UID=sa;PWD=myPassword')

>>>cursor = cnxn.cursor()

>>>cursor.execute("select * from Tb")

在这里碰到很奇怪的问题，用DRIVER={SQL Server}无法打开，很慢会报错，但是DRIVER={SQL Native Client}就没有问题，而且很快。

3 测试django-pyodbc，并在django中测试

3.1安装django-pyodbc    下载地址 http://code.google.com/p/django-pyodbc/source/checkout

3.2 在django中测试

参考 http://blog.csdn.net/omage/article/details/7312919

但是如果按照其配置，仍然不通，各种错误：

Error: ('08001', '[08001] [Microsoft][ODBC SQL Server Driver][DBNETLIB]\xce\xde\xd0\xa7\xb5\xc4\xc1\xac\xbd\xd3\xa1\xa3 (14) (SQLDriverConnect); [01000] [Microsoft][ODBC SQL Server Driver][DBNETLIB]ConnectionOpen (Invalid Instance()). (14)')

Error: ('08001', '[08001] [Microsoft][ODBC SQL Server Driver][Shared Memory]\xce\xde\xd0\xa7\xb5\xc4\xc1\xac\xbd\xd3\xa1\xa3 (14) (SQLDriverConnect); [01000] [Microsoft][ODBC SQL Server Driver][Shared Memory]ConnectionOpen (Invalid Instance()). (14)')

Error: ('28000', '[28000] [Microsoft][SQL Native Client][SQL Server]\xd3\xc3\xbb\xa7 \'sa\' \xb5\xc7\xc2\xbc\xca\xa7\xb0\xdc\xa1\xa3 (18456) (SQLDriverConnect); [42000] [Microsoft][SQL Native Client][SQL Server]\xce\xde\xb7\xa8\xb4\xf2\xbf\xaa\xb5\xc7\xc2\xbc\xcb\xf9\xc7\xeb\xc7\xf3\xb5\xc4\xca\xfd\xbe\xdd\xbf\xe2 "test"\xa1\xa3\xb5\xc7\xc2\xbc\xca\xa7\xb0\xdc\xa1\xa3 (4060); [28000] [Microsoft][SQL Native Client][SQL Server]\xd3\xc3\xbb\xa7 \'sa\' \xb5\xc7\xc2\xbc\xca\xa7\xb0\xdc\xa1\xa3 (18456); [42000] [Microsoft][SQL Native Client][SQL Server]\xce\xde\xb7\xa8\xb4\xf2\xbf\xaa\xb5\xc7\xc2\xbc\xcb\xf9\xc7\xeb\xc7\xf3\xb5\xc4\xca\xfd\xbe\xdd\xbf\xe2 "test"\xa1\xa3\xb5\xc7\xc2\xbc\xca\xa7\xb0\xdc\xa1\xa3 (4060)')

Traceback (most recent call last):
  File "", line 1, in
    cnxn = pyodbc.connect('DRIVER={SQL Native Client};SERVER=localhost;DATABASE=ren-pc\test;UID=sa;PWD=admin')
Error: ('28000', '[28000] [Microsoft][SQL Native Client][SQL Server]\xd3\xc3\xbb\xa7 \'sa\' \xb5\xc7\xc2\xbc\xca\xa7\xb0\xdc\xa1\xa3 (18456) (SQLDriverConnect); [42000] [Microsoft][SQL Native Client][SQL Server]\xce\xde\xb7\xa8\xb4\xf2\xbf\xaa\xb5\xc7\xc2\xbc\xcb\xf9\xc7\xeb\xc7\xf3\xb5\xc4\xca\xfd\xbe\xdd\xbf\xe2 "ren-pc\test"\xa1\xa3\xb5\xc7\xc2\xbc\xca\xa7\xb0\xdc\xa1\xa3 (4060); [28000] [Microsoft][SQL Native Client][SQL Server]\xd3\xc3\xbb\xa7 \'sa\' \xb5\xc7\xc2\xbc\xca\xa7\xb0\xdc\xa1\xa3 (18456); [42000] [Microsoft][SQL Native Client][SQL Server]\xce\xde\xb7\xa8\xb4\xf2\xbf\xaa\xb5\xc7\xc2\xbc\xcb\xf9\xc7\xeb\xc7\xf3\xb5\xc4\xca\xfd\xbe\xdd\xbf\xe2 "ren-pc\test"\xa1\xa3\xb5\xc7\xc2\xbc\xca\xa7\xb0\xdc\xa1\xa3 (4060)')

实在无语，研究了下django-pyodbc的源码，尤其是sql_server目录下代码，发现在base.py中有如下代码：

            else:
                if os.name == 'nt':
                    driver = 'SQL Server'
                else:
                    driver = 'FreeTDS'

猜测原因应该和上一步一样，所以修改如下：

            else:
                if os.name == 'nt':
                    #driver = 'SQL Server'
                    driver = 'SQL Native Client'
                else:
                    driver = 'FreeTDS'

再在django中测试，出现如下语句：

Creating tables ...
Creating table auth_permission
Creating table auth_group_permissions
Creating table auth_group
Creating table auth_user_user_permissions
Creating table auth_user_groups
Creating table auth_user
Creating table auth_message
Creating table django_content_type
Creating table django_session
Creating table django_site

You just installed Django's auth system, which means you don't have any superusers defined.
Would you like to create one now? (yes/no): yes

测试通过，继续后面工作，不过，有空再研究下第二步的问题是什么。