Question

我在尝试使用pyobdc访问ms-sql数据库时遇到问题。

这是系统配置： Python 2.7.11 Pyodbc 3.0.7 RedHat 5.4（Tikanga）32位系统 Microsoft SQL Server 2012（数据库服务器） unixODBC 2.3.0

$ tsql -C输出

Compile-time settings (established with the "configure" script)
                            Version: freetds v0.91
             freetds.conf directory: /etc
     MS db-lib source compatibility: yes
        Sybase binary compatibility: no
                      Thread safety: yes
                      iconv library: yes
                        TDS version: 5.0
                              iODBC: no
                           unixodbc: yes
              SSPI "trusted" logins: no
                           Kerberos: no

$ odbcinst -j输出

unixODBC 2.3.0
DRIVERS............: /usr/local/etc/odbcinst.ini 
SYSTEM DATA SOURCES: /usr/local/etc/odbc.ini
FILE DATA SOURCES..: /usr/local/etc/ODBCDataSources
USER DATA SOURCES..: /root/.odbc.ini
SQLULEN Size.......: 4
SQLLEN Size........: 4
SQLSETPOSIROW Size.: 2

$ cat /usr/local/etc/odbcinst.ini输出

[ms-sql]
Description=TDS connection
Driver=/usr/local/lib/libtdsodbc.so
Setup=/usr/local/lib/libtdsodbc.so
FileUsage=1
UsageCount=1

$ cat /usr/local/etc/odbc.ini输出

[sqlserverdatasource]
Driver = ms-sql
Description = ODBC connection via ms-sql
Trace = No
Server = >IP Addresss To Database server<
Port = >Port Number<
Database = >Database name<

$ cat /etc/freetds.conf输出

[sql-server]
host        = >IP Addresss To Database server<
port        = >Port Number<
tds version = 8.0

给我错误的命令：

connection = pyodbc.connect(r'DRIVER={FreeTDS};SERVER=>IP Addresss To Database server<; PORT=>Port Number<;DATABASE=Database name;UID=Database UID;PWD=DatabasePasswd;')

错误：

Traceback (most recent call last):   File "<stdin>", line 1, in
<module> pyodbc.Error: ('IM002', '[IM002] [unixODBC][Driver
Manager]Data source name not found, and no default driver specified
(0) (SQLDriverConnect)')

我在过去3天试图解决这个问题。但还没有运气。所以任何帮助/建议都会非常有帮助。我已经通过谷歌搜索了。在此先感谢：）

Answer 1

尝试这样的事情：

<强> freetds.conf：

[sql-server]
    host = sql-server.host.com
    port = 1433
    tds version = 7.2

<强> ODBC.INI：

[sql-server]
    Driver = FreeTDS
    Server = sql-server.host.com
    Port = 1433
    TDS_Version = 7.2

<强> ODBCINST.INI：

[FreeTDS]
    Description = v0.91 with protocol v7.2
    Driver = /usr/local/lib/libtdsodbc.so

在Python中：

connection = pyodbc.connect(r'DRIVER={FreeTDS};SERVER=sql-server.host.com;PORT=1433;DATABASE=Database name;UID=Database Username;PWD=DatabasePasswd;TDS_Version=7.2')

TDS版本8.0不存在。 7.2是FreeTDS 0.91中支持的最高值。请参阅此处以解释混淆：http://www.freetds.org/userguide/choosingtdsprotocol.htm

如果您仍然遇到问题，请尝试使用tsql和isql进行测试，分别测试连接堆栈的FreeTDS和unixODBC层。祝你好运！

pyodbc无法使用RedHat 5.4。尝试使用unixODBC和FreeTDS连接到ms-sql数据库服务器？

1 个答案: