CentOS下安裝FreeTDS

導讀

官方網站：http://www.freetds.org

下載地址：http://ibiblio.org/pub/Linux/...

這個軟件能夠用Linux和Unix連接MS SQLServer和Sybase數據庫

安裝與配置

1. 首先下載FreeTDS安裝包到服務器

   wget -c http://ibiblio.org/pub/Linux/ALPHA/freetds/stable/freetds-stable.tgz

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2. 解壓

   tar -zxvf freetds-stable.tgz

3. 編譯安裝

   1. 因爲是編譯安裝所以確保機器有安裝gcc（可使用yum進行安裝）

      yum install gcc-c++
      yum install ncurses-devel

   2. 開始安裝

      cd freetds-0.91/
      ./configure --prefix=/usr/local/freetds --with-tdsver=8.0 --enable-msdblib
      make && makeinstall

      `解釋：

      安裝freetds到目錄/usr/local/freetds：--prefix=/usr/local/freetds
      支持MSSQL2000：--with-tdsver=8.0 --enable-msdblib`
      

1. FreeTDS默認安裝在/usr/local/freetds目錄當中，庫文件在相應的lib目錄下。

   vim /etc/ld.so.conf加入一行 /usr/local/freetds/lib

2. 然後運行以下指令使更改生效：

   ldconfig

3. 測試連接

   tsql -H MSSQL服務器服務IP -p 1433 -U MSSQL服務器登陸帳號 －P MSSQL服務器登陸密碼

   $  tsql -H XXXXXX-p 1433 -U sa -P XXXXXX -D test  
   locale is "zh_CN.utf8"  
   locale charset is "UTF-8"  
   Default database being set to test  
   1> select @@version  
   2> go  
     
   Microsoft SQL Server 2008 R2 (RTM) - 10.50.1600.1 (Intel X86)  
           Apr  2 2010 15:53:02  
           Copyright (c) Microsoft Corporation  
           Data Center Edition on Windows NT 5.1 <X86> (Build 2600: Service Pack 3)  
     
   (1 row affected)

   問題

   Adaptive Server connection failed

   locale is "en_US.UTF-8"
   locale charset is "UTF-8"
   using default charset "UTF-8"
   Error 20017 (severity 9):
           Unexpected EOF from the server
           OS error 115, "Operation now in progress"
   Error 20002 (severity 9):
           Adaptive Server connection failed
   There was a problem connecting to the server

   執行tsql -C

   [root@thinkpa freetds-0.91]# tsql -C
   Compile-time settings (established with the "configure" script)
                               Version: freetds v0.91
                freetds.conf directory: /usr/local/etc
        MS db-lib source compatibility: no
           Sybase binary compatibility: no
                         Thread safety: yes
                         iconv library: yes
                           TDS version: 5.0
                                 iODBC: no
                              unixodbc: no
                 SSPI "trusted" logins: no
                              Kerberos: no

   發現freetds的版本是5.0，考慮到可能是freetds版本的問題

   兩種解決方式：

   1. 修改全局TDS 版本號

      找到/usr/local/etc/freetds.conf修改[global]下面的tds version爲8.0

   2. 連接時修改tds版本號

      TDSVER=7.0 tsql -H

      整個連接命令則變爲：

      tsql -H MSSQL服務器服務IP -p 1433 -U MSSQL服務器登陸帳號 －P MSSQL服務器登陸密碼

      Adaptive Server connection failed

   "Cannot open server 'xxxxxxx' requested by the login. Client with IP    address 'xxxxxxxxx' is not allowed to access the server.  To enable       access, use the Windows Azure Management Portal or run                   sp_set_firewall_rule on the master database to create a firewall       rule for this IP address or address range.  It may take up to five       minutes for this change to take effect."
   Error 20002 (severity 9):
           Adaptive Server connection failed

這個毋庸置疑了，找管理員開通白名單再訪問吧！