Question

我使用Homebrew安装了freetds。我的配置如下：

odbcinst -j:

unixODBC 2.3.1 DRIVERS............: /usr/local/Cellar/unixodbc/2.3.1/etc/odbcinst.ini SYSTEM DATA SOURCES: /usr/local/Cellar/unixodbc/2.3.1/etc/odbc.ini FILE DATA SOURCES..: /usr/local/Cellar/unixodbc/2.3.1/etc/ODBCDataSources USER DATA SOURCES..: /Users/mark.richman/.odbc.ini SQLULEN Size.......: 8 SQLLEN Size........: 8 SQLSETPOSIROW Size.: 8

/usr/local/Cellar/unixodbc/2.3.1/etc/odbcinst.ini:

[ODBC] Trace = Yes TraceFile = /tmp/odbc.log

/usr/local/Cellar/freetds/0.91/etc/freetds.conf:

[db.mydomain.local] host = db.mydomain.local port = 1433 tds version = 8.0 client charset = UTF-8

~/.odbc.ini:

[MomImporterDSN] Description = Mom Importer Driver = /usr/local/Cellar/freetds/0.91/lib/libtdsodbc.so Servername = db.mydomain.local Database = MomImporter UserName = mark.richman Password = mypassword

当我尝试isql -v MomImporterDSN时，我收到以下错误：

[S1000][unixODBC][FreeTDS][SQL Server]Unable to connect to data source [01000][unixODBC][FreeTDS][SQL Server]Adaptive Server connection failed [ISQL]ERROR: Could not SQLConnect

我的/tmp/odbc.log似乎并不特别有用：

    [ODBC][14514][1373290079.248688][__handles.c][460]
        Exit:[SQL_SUCCESS]
            Environment = 0x7fcbe1004c00
[ODBC][14514][1373290079.249314][SQLAllocHandle.c][375]
        Entry:
            Handle Type = 2
            Input Handle = 0x7fcbe1004c00
[ODBC][14514][1373290079.249470][SQLAllocHandle.c][493]
        Exit:[SQL_SUCCESS]
            Output Handle = 0x7fcbe1024800
[ODBC][14514][1373290079.249712][SQLConnect.c][3700]
        Entry:
            Connection = 0x7fcbe1024800
            Server Name = [MOMImporterDSN][length = 14 (SQL_NTS)]
            User Name = [NULL]
            Authentication = [NULL]
        UNICODE Using encoding ASCII 'char' and UNICODE 'UCS-2-INTERNAL'

        DIAG [01000] [FreeTDS][SQL Server]Adaptive Server connection failed

        DIAG [S1000] [FreeTDS][SQL Server]Unable to connect to data source

[ODBC][14514][1373290079.703504][SQLConnect.c][4067]
        Exit:[SQL_ERROR]
[ODBC][14514][1373290079.704257][SQLError.c][434]
        Entry:
            Connection = 0x7fcbe1024800
            SQLState = 0x7fff5a823526
            Native = 0x7fff5a823520
            Message Text = 0x7fff5a823530
            Buffer Length = 500
            Text Len Ptr = 0x7fff5a82351e
[ODBC][14514][1373290079.704559][SQLError.c][471]
        Exit:[SQL_SUCCESS]
            SQLState = S1000
            Native = 0x7fff5a823520 -> 0
            Message Text = [[unixODBC][FreeTDS][SQL Server]Unable to connect to data source]
[ODBC][14514][1373290079.704777][SQLError.c][434]
        Entry:
            Connection = 0x7fcbe1024800
            SQLState = 0x7fff5a823526
            Native = 0x7fff5a823520
            Message Text = 0x7fff5a823530
            Buffer Length = 500
            Text Len Ptr = 0x7fff5a82351e
[ODBC][14514][1373290079.704996][SQLError.c][471]
        Exit:[SQL_SUCCESS]
            SQLState = 01000
            Native = 0x7fff5a823520 -> 20002
            Message Text = [[unixODBC][FreeTDS][SQL Server]Adaptive Server connection failed]
[ODBC][14514][1373290079.705172][SQLError.c][434]
        Entry:
            Connection = 0x7fcbe1024800
            SQLState = 0x7fff5a823526
            Native = 0x7fff5a823520
            Message Text = 0x7fff5a823530
            Buffer Length = 500
            Text Len Ptr = 0x7fff5a82351e
[ODBC][14514][1373290079.705357][SQLError.c][471]
        Exit:[SQL_NO_DATA]
[ODBC][14514][1373290079.705583][SQLError.c][514]
        Entry:
            Environment = 0x7fcbe1004c00
            SQLState = 0x7fff5a823526
            Native = 0x7fff5a823520
            Message Text = 0x7fff5a823530
            Buffer Length = 500
            Text Len Ptr = 0x7fff5a82351e
[ODBC][14514][1373290079.705763][SQLError.c][551]
        Exit:[SQL_NO_DATA]
[ODBC][14514][1373290079.706061][SQLFreeHandle.c][284]
        Entry:
            Handle Type = 2
            Input Handle = 0x7fcbe1024800
[ODBC][14514][1373290079.706195][SQLFreeHandle.c][333]
        Exit:[SQL_SUCCESS]
[ODBC][14514][1373290079.706415][SQLFreeHandle.c][219]
        Entry:
            Handle Type = 1
            Input Handle = 0x7fcbe1004c00

我正在使用Mountain Lion 10.8.4，unixodbc 2.3.1，freetds 0.91和SQL Server 2008.

谢谢！

Answer 1

按照https://github.com/mkleehammer/pyodbc/wiki/Connecting-to-SQL-Server-from-Mac-OSX

中的所有说明操作

但是，如果isql / osql不起作用（假设tsql正常工作），则几乎没有其他步骤和黑客攻击。他们可能听起来很奇怪，但解决了问题（isql / osql没有连接虽然tsql工作正常）对我来说。

下面列出的每个步骤都是调试osql错误消息的结果。

在一个或多个步骤中，您可能需要其他root权限。必要时授予它们并在实现pyodbc连接后撤销。

文件odbc.ini和odbcinst.ini也应该出现在/Users/<username>/etc中，除了官方文档指定的位置。
odbcinst.ini中也应该有/(root directory)的副本。
文件freetds.conf应出现在/usr/local/etc目录中。
如果您使用的是SQL Server 2014及更高版本，则应将tds版本设置为7.4。不要将tds版本设置为8，因为它只是7.1的别名。
检查文件/usr/local/lib/libtdsodbc.so是否具有执行权限。如果没有，请通过chmod授予766/744/777（在最坏的情况下）特权。这一步对于运行osql / isql以及从python进行pyodbc连接至关重要。

完成这些步骤后，请重新检查odbc.ini，odbcinst.ini和freetds.conf的内容，并确认它们符合文档（https://github.com/mkleehammer/pyodbc/wiki/Connecting-to-SQL-Server-from-Mac-OSX）

运行isql / osql。

如果现在一切正常，那么你们都被设置为从python连接到SQLServer。以下代码段显示了基本连接过程。

import pyodbc

connection = pyodbc.connect('DSN=MYMSSQL;UID=<user_id for db_login>;PWD=<password_for db_login>)
cursor = connection.cursor()

result = cursor.execute("select @@VERSION").fetchall()
print(result)

cursor.close()
connection.close()

Answer 2

您可以通过在ODBC设置中指定TDS版本来修复此错误

[MomImporterDSN]
Description = Mom Importer
Driver = /usr/local/Cellar/freetds/0.91/lib/libtdsodbc.so
TDS_Version = 8.0
Servername = db.mydomain.local
Database = MomImporter
UserName = mark.richman
Password = mypassword

无法在Mac OS X上使用isql连接到SQL Server

2 个答案: