TDSVersion一直拖欠到7.1 pymssql

Question

重要的变化：

下面的命令也能和我得到正确的提示。 pymssql必然存在问题。

sudo TDSVER=7.1 tsql -H asdf.database.windows.net -p 1433 -U adf@ad -P adsf#adf -D adf 

所以我正在与我的pymssql和freetds驱动程序打架。

平台版本等：

的Ubuntu 16.04

freetds的v0.91（由工作TSQL使用）

freetds的V0.95（由pymssql使用）

pymssql V2.1.3

目标数据库：SQL Azure（最新）

安装说明：https://azure.microsoft.com/en-us/documentation/articles/sql-database-develop-python-simple/

我已经进入了每个freetds.conf文件，我可以找到：/etc/freetds/freetds.conf; /root/.freetds.conf

我已将全球TDS版本设置为8.0。我从Python的观点看在我pymssql.connect覆盖的版本覆盖至8.0

import os 
os.environ['TDSDUMP'] = 'stdout' 
import pymssql 
conn = pymssql.connect(server='adsf.database.windows.net', 
        user='asdf@adfs', 
        password='asdf#adfad', 
        database='asdd', 
        tds_version='8.0', 
        ) 

我运行诊断工具：

TSQL -C，回到4.2的版本

我运行代码将日志转储到标准输出，并注意，版本是7.1。

net.c：202：连接到191.238.6.43端口1433（TDS 7.1版）

下面的TSQL命令的工作对我来说...

sudo TDSVER=8.0 tsql -H asdf.database.windows.net -p 1433 -U adf@ad -P adsf#adf -D adf 

通知版本号。它的8.0。我可以验证我获得的数据，并可以做到我想要的一切。

所以这里有一个明显的问题，就是pymssql与freetds挂钩。

这里是从原木堆在有人的情况下，输出所有看到的东西，我不能......

>>> import os 
>>> os.environ['TDSDUMP'] = 'stdout' 
>>> import pymssql 
>>> conn = pymssql.connect(server='xxx.database.windows.net', 
...      user='xxx@xxx', 
...      password='xxxx', 
...      database='xxx', 
...      tds_version='8.0', 
...      ) 
log.c:167:Starting log file for FreeTDS 0.95 
    on 2016-08-27 20:47:18 with debug flags 0x4fff. 
dblib.c:1160:tdsdbopen(0x15d1070, xxx.database.windows.net:1433, [microsoft]) 
dblib.c:1186:tdsdbopen: dbproc->dbopts = 0x15fa760 
dblib.c:1193:tdsdbopen: tds_set_server(0x14eacf0, "xxx.database.windows.net:1433") 
dblib.c:258:dblib_get_tds_ctx(void) 
dblib.c:1210:tdsdbopen: About to call tds_read_config_info... 
config.c:168:Getting connection information for [xxx.database.windows.net:1433]. 
config.c:172:Attempting to read conf files. 
config.c:353:... $FREETDSCONF not set. Trying $FREETDS/etc. 
config.c:366:... $FREETDS not set. Trying $HOME. 
config.c:296:Found conf file '/root/.freetds.conf' (.freetds.conf). 
config.c:495:Looking for section global. 
config.c:554: Found section egserver50. 
config.c:554: Found section xxx.database.windows.net. 
config.c:568: Reached EOF 
config.c:495:Looking for section xxx.database.windows.net:1433. 
config.c:554: Found section egserver50. 
config.c:554: Found section xxx.database.windows.net. 
config.c:568: Reached EOF 
config.c:302:[xxx.database.windows.net:1433] not found. 
config.c:296:Found conf file '/etc/freetds/freetds.conf' (default). 
config.c:495:Looking for section global. 
config.c:554: Found section global. 
config.c:557:Got a match. 
config.c:580: text size = '64512' 
config.c:554: Found section egserver50. 
config.c:554: Found section egserver70. 
config.c:568: Reached EOF 
config.c:495:Looking for section xxx.database.windows.net:1433. 
config.c:554: Found section global. 
config.c:554: Found section egserver50. 
config.c:554: Found section egserver70. 
config.c:568: Reached EOF 
config.c:302:[xxx.database.windows.net:1433] not found. 
config.c:353:... $FREETDSCONF not set. Trying $FREETDS/etc. 
config.c:366:... $FREETDS not set. Trying $HOME. 
config.c:296:Found conf file '/root/.freetds.conf' (.freetds.conf). 
config.c:495:Looking for section global. 
config.c:554: Found section egserver50. 
config.c:554: Found section xxx.database.windows.net. 
config.c:568: Reached EOF 
config.c:495:Looking for section xxx.database.windows.net. 
config.c:554: Found section egserver50. 
config.c:554: Found section xxx.database.windows.net. 
config.c:557:Got a match. 
config.c:580: host = 'xxx.database.windows.net' 
config.c:617:Found host entry xxx.database.windows.net 
config.c:620:IP addr is 191.238.6.43. 
config.c:580: port = '1433' 
config.c:580: tds version = '8.0' 
config.c:886:Setting tds version to 8.0 (0x701). 
config.c:568: Reached EOF 
config.c:300:Success: [xxx.database.windows.net] defined in /root/.freetds.conf. 
config.c:765:Setting 'dump_file' to 'stdout' from $TDSDUMP. 
config.c:689:tds_config_login: client_charset is UTF-8. 
config.c:696:tds_config_login: database_name is xxx. 
config.c:765:Setting 'dump_file' to 'stdout' from $TDSDUMP. 
dblib.c:1237:tdsdbopen: Calling tds_connect_and_login(0x15fae30, 0x15fb4f0) 
iconv.c:328:tds_iconv_open(0x15fae30, UTF-8) 
iconv.c:187:local name for ISO-8859-1 is ISO-8859-1 
iconv.c:187:local name for UTF-8 is UTF-8 
iconv.c:187:local name for UCS-2LE is UCS-2LE 
iconv.c:187:local name for UCS-2BE is UCS-2BE 
iconv.c:346:setting up conversions for client charset "UTF-8" 
iconv.c:348:preparing iconv for "UTF-8" <-> "UCS-2LE" conversion 
iconv.c:395:preparing iconv for "ISO-8859-1" <-> "UCS-2LE" conversion 
iconv.c:400:tds_iconv_open: done 
net.c:202:Connecting to xxx.xxx.xxx.xxx port 1433 (TDS version 7.1) 
net.c:275:tds_open_socket: connect(2) returned "Operation now in progress" 
net.c:314:tds_open_socket() succeeded 
packet.c:740:Sending packet 
0000 12 01 00 34 00 00 00 00-00 00 15 00 06 01 00 1b |...4.... ........| 
0010 00 01 02 00 1c 00 0c 03-00 28 00 04 ff 08 00 01 |........ .(......| 
0020 55 00 00 02 4d 53 53 51-4c 53 65 72 76 65 72 00 |U...MSSQ LServer.| 
0030 08 4d 00 00   -      |.M..| 

packet.c:639:Received packet 
0000 04 01 00 25 00 00 01 00-00 00 15 00 06 01 00 1b |...%.... ........| 
0010 00 01 02 00 1c 00 01 03-00 1d 00 00 ff 0c 00 03 |........ ........| 
0020 2b 00 00 03 00   -      |+....| 

login.c:1106:detected flag 3 
login.c:472:login packet rejected 
query.c:3772:tds_disconnect() 
util.c:165:Changed query state from IDLE to DEAD 
util.c:322:tdserror(0x14aafa0, 0x15fae30, 20002, 0) 
dblib.c:7925:dbperror(0x15fa390, 20002, 0) 
dblib.c:7993:dbperror: Calling dblib_err_handler with msgno = 20002; msg->msgtext = "Adaptive Server connection failed (xxx.database.windows.net:1433)" 
dblib.c:8015:dbperror: dblib_err_handler for msgno = 20002; msg->msgtext = "Adaptive Server connection failed (xxx.database.windows.net:1433)" -- returns 2 (INT_CANCEL) 
util.c:352:tdserror: client library returned TDS_INT_CANCEL(2) 
util.c:375:tdserror: returning TDS_INT_CANCEL(2) 
dblib.c:1241:tdsdbopen: tds_connect_and_login failed for "xxx.database.windows.net:1433"! 
dblib.c:1463:dbclose(0x15fa390) 
dblib.c:243:dblib_del_connection(0x7f7f78fbd980, 0x15fae30) 
mem.c:648:tds_free_all_results() 
dblib.c:290:dblib_release_tds_ctx(1) 
dblib.c:5873:dbfreebuf(0x15fa390) 
dblib.c:743:dbloginfree(0x15d1070) 
Traceback (most recent call last): 
    File "pymssql.pyx", line 635, in pymssql.connect (pymssql.c:10734) 
    File "_mssql.pyx", line 1902, in _mssql.connect (_mssql.c:21821) 
    File "_mssql.pyx", line 637, in _mssql.MSSQLConnection.__init__ (_mssql.c:6581) 
    File "_mssql.pyx", line 1630, in _mssql.maybe_raise_MSSQLDatabaseException (_mssql.c:17524) 
_mssql.MSSQLDatabaseException: (20002, b'DB-Lib error message 20002, severity 9:\nAdaptive Server connection failed (ea1eg7cgdn.database.windows.net:1433)\n') 

During handling of the above exception, another exception occurred: 

Traceback (most recent call last): 
    File "<stdin>", line 5, in <module> 
    File "pymssql.pyx", line 641, in pymssql.connect (pymssql.c:10824) 
pymssql.OperationalError: (20002, b'DB-Lib error message 20002, severity 9:\nAdaptive Server connection failed (xxxx.database.windows.net:1433)\n') 

Answer 1

似乎freetds v0.95与Ubuntu 16.04不兼容，因为它随v0.95一起发布，所以它既不是最新版本的pymssql，而且它似乎也没有太多的工作可以交换它的版本用完了。

我能得到这个做的工作如下：

sudo apt-get install freetds-dev freetds-bin 
sudo pip3 install pymssql=2.1.1 

另外请注意，它不会与蟒蛇解释工作。我只测试了Anaconda解释器和标准的CPython解释器。

Answer 2

不幸的是，你不告诉我们：

• 哪个版本的TDS你希望实际使用。
• 哪个pymssql版本使用的是和你如何安装它

如果你要使用TDS 8.0，看使用7.1，那么你

一）不需要pymssql + freetds的担心，因为它们是同一件事。请参阅http://www.freetds.org/userguide/choosingtdsprotocol.htm#AEN910

b）实际上使用"7.1"作为FreeTDS 1.0弃用使用"8.0"。请参阅https://github.com/FreeTDS/freetds/blob/1855d0f72aadd998ab133208fcd3f4d168074ab5/NEWS#L6-L7