Python access to SQL Server installation, configuration, code samples

FreeTDS is able to connect MS SQL Server and Sybase database with Linux and UNIX, TDS means "table column data Flow"

To install the GCC components:

Yum install-y gcc

Otherwise configure when the error:

Configure:error:no acceptable C compiler found in $PATH

Install Freetds-dev under Linux:

Download Source:

http://mirrors.ibiblio.org/freetds/stable/

Freetds-stable.tgz

http://www.freetds.org/

After extracting from any directory:

./configure--prefix=/usr/local/freetds--with-tdsver=8.0

Make

sudo make install

Configuration file:/usr/local/freetds/etc/freetds.conf

Add to:

[mssql2005]

Host = x.x.x.x

Port = 1433

TDS Version = 8.0

Client CharSet = UTF-8

Test:

#/usr/local/freetds/bin/tsql-s mssql2005-h x.x.x.x-p 1433-u myuser-p mypassword

1> SELECT * from MyDB. MyTable

2> Go

(Query results can be obtained normally)

Download Python setuptools-git

https://pypi.python.org/pypi/setuptools-git/

Unzip to any directory and run into directory:

Python setup.py Install

Download and install Pymssql:

Https://pypi.python.org/pypi/pymssql/2.1.1#downloads

Pymssql-2.1.1.tar.gz

Unzip to any directory and run into directory:

Python setup.py Install

To increase the LIB path:

Export Ld_library_path= $LD _library_path:/usr/local/freetds/lib/

You can import pymssql in Python

To increase the bin path:

Vi/root/.bashrc

Add content as follows:

Export Freetds=/usr/local/freetds

Export $PATH = "$PATH: $FREETDS/bin"

To make it effective immediately:

Source/root/.bashrc

(end)

code example:

#coding =utf-8 #!/usr/bin/env pythonimport pymssqlimport configparserclass mssql:     def __init__ (self):         cf =  configparser.configparser ()         cf.read ("mssql.conf")          self.host = cf.get ("DB", "host")          self.user = cf.get ("DB", "user")          self.pwd = cf.get ("DB", "pwd")         self.db =  cf.get ("db", "db")                 def __getconnect (self):         "" "         get connetion info        response:  conn.cursor ()          "" "         #if  not self.db:         #    raise (NameError, "no db conf  file found ")              self.conn  = pymssql.connect (Host=self.host,user=self.user,password=self.pwd,database=self.db,timeout=5,login_ timeout=2,charset= "UTF8")         cur = self.conn.cursor ()         if not cur:             raise (Nameerror, "fail connecting to db")          else:             return cur    # #verify  DB connection    def  VerifyConnection (self):         try:             if self.host== ':                 return False             conn = pymssql.connect (Host=self.host,user=self.user,password=self.pwd,database=self.db, timeout=1,login_timeout=1,charset= "UTF8")              return True        except:             return false    def execquery (Self,sql ):         "" "        execute  query        get a list including tuple,  elements of list are row of record, elements of tuple is fields         demo                 ms = mssql (host= "localhost", user= "sa", pwd= "123456", db= "Pythonweibostatistics")                 reslist =  ms. ExecQuery ("Select id,nickname from weibouser")                  for  (Id,nickname)  in resList:                     print  str (ID),nickname         "" "         cur = self.__getconnect ()         cur.execute (SQL )   &NBSp;     reslist = cur.fetchall ()           #resList  = cur.description         #close   Connection after querying        self.conn.close ()          return reslist    def execnonquery ( Self,sql):         "" "         execute no query        demo             cur = self.__getconnect ()              cur.execute (SQL)              self.conn.commit ()              self.conn.close ()   &NBsp;      "" "        cur = self.__ GetConnect ()         cur.execute (SQL)          self.conn.commit ()         self.conn.close ()      def execstoreproduce (self,sql):         "" "         execute query         get a list including tuple, elements of list are row  of record, elements of tuple is fields         demo:                ms  = mssql (host= "localhost", user= "sa", pwd= "123456", db= "Pythonweibostatistics")                   reslist = ms. ExecQuery ("Select id,nickname from weibouser")                  for  (Id,nickname)  in resList:                     print  str (ID),nickname         "" "         cur = self.__getconnect ()         cur.execute (SQL )         reslist = cur.fetchall ()          self.conn.commit ()          #close   Connection after querying        self.conn.close ()          return reslistdef main(): sqlquery= "Select * from mydb. MyTable "Sqlconn=mssql () res=sqlconn. ExecQuery (sqlquery) for data in res:print dataif __name__== ' __main__ ': Main ()

Configuration file mssql.conf:

[Db]host=x.x.x.xdb=mydbuser=myuserpwd=mypassword

Python access to SQL Server installation, configuration, code samples