pyodbc连接SQL Server出现中文乱码问题的解决方案

添加一个配置参数unicode_results=True

pyodbc.connect(connStr,unicode_results=True)

资料（摘自http://code.google.com/p/pyodbc/wiki/Module）：

connect

connect(*connectionstring, **kwargs) --> Connection

Creates and returns a new connection to the database.

The optional connection string can be passed as a string or Unicode object (connectionstring), as keywords (kwargs), or both.

# a string
cnxn = connect('driver={SQL Server};server=localhost;database=test;uid=me;pwd=me2')

# keywords
cnxn = connect(driver='{SQL Server}', server='localhost', database='test', uid='me', pwd='me2')

# both
cnxn = connect('driver={SQL Server};server=localhost;database=test', uid='me', pwd='me2')

The DB API recommends some keywords that are not usually used in ODBC connection strings, so they are converted:

from	converted to
host	server
user	uid
password	pwd

Some keywords are used by pyodbc and are not passed to the odbc driver:

keyword	description	default
autocommit	If False, Connection.commit must be called; otherwise each statement is automatically commited	False
ansi	If True, the driver does not support Unicode and SQLDriverConnectA should be used	False
unicode_results	If True, strings returned in result sets are always Unicode (2.1.5+)	False
readonly	If True, the connection is set to readonly	False

The ansi keyword should only be used to work around driver bugs. pyodbc will determine if the Unicode connection function (SQLDriverConnectW) exists and always attempt to call it. If the driver returns IM001 indicating it does not support the Unicode version, the ANSI version is tried (SQLDriverConnectA). Any other SQLSTATE is turned into an exception. Setting ansi to true skips the Unicode attempt and only connects using the ANSI version. This is useful for drivers that return the wrong SQLSTATE (or if pyodbc is out of date and should support other SQLSTATEs).

For help on connection strings, see ConnectionStrings