首先需要安裝pymssql模塊（http://linuxshow.blog.51cto.com/1572053/1407255）
配置下freetds
#cat /usr/local/freetds/etc/freetds.conf
| # $Id: freetds.conf,v 1.12 2007/12/25 06:02:36 jklowden Exp $ # # This file is installed by FreeTDS if no file by the same # name is found in the installation directory. # # For information about the layout of this file and its settings, # see the freetds.conf manpage "man freetds.conf". # Global settings are overridden by those in a database # server specific section [global] # TDS protocol version ;tds version = 4.2 # Whether to write a TDSDUMP file for diagnostic purposes # (setting this to /tmp is insecure on a multi-user system) ;dump file = /tmp/freetds.log ;debug flags = 0xffff # Command and connection timeouts ;timeout = 10 ;connect timeout = 10 # If you get out-of-memory errors, it may mean that your client # is trying to allocate a huge buffer for a TEXT field. # Try setting 'text size' to a more reasonable limit text size = 64512 # A typical Sybase server#newadd [test_db] host = 127.0.0.1 port = 1433 tds version = 8.0 client charset = GBK |
連接SQL服務器的代碼
import sys
import pymssql
class Mssql:
def __init__(self, config):
self.cf = config
def __Connect(self):
try:
self.conn = pymssql.connect(host=self.cf['host'],user=self.cf['user'],password=self.cf['pwd'],database=self.cf['db'])
cur = self.conn.cursor()
except Exception, err:
print "Error decoding config file: %s" % str(err)
sys.exit(1)
return cur
def select(self, sql):
try:
cur = self.__Connect()
cur.execute(sql)
rows = cur.fetchall()
cur.close()
self.conn.close()
return rows
except Exception, err:
print "Error decoding config file: %s" % str(err)
sys.exit(1)
def insert(self, sql):
try:
cur = self.__Connect()
cur.execute(sql)
cur.close()
self.conn.commit()
self.conn.close()
except Exception, err:
print "Error decoding config file: %s" % str(err)
sys.exit(1)
def main():
config = {'host':'test_db','user':'test','pwd':'123456','db':'Testdb'}
mssql = Mssql(config)
#select sql
sql = "select * from test_table"
rows = mssql.select(sql)
#insert sql
sql = "insert into test_table values('1','2','3')"
mssql.insert(sql)
if __name__ == "__main__":
main()注：host裏test_db是調用freetds配置裏的，可以直接寫ip
下面是pymssql裏參數使用說明，如下：
1. pymssqlCnx類（用於連接Mssql數據庫）
pymssql.connect()來初始化連接類，它允許如下的參數。
| dsn：連接字符串，主要用於與之前版本的pymssql兼容 user：用戶名 password：密碼 trusted：布爾值,指定是否使用windows身份認證登陸 host :主機名 database：數據庫 timeout：查詢超時 login_timeout：登陸超時 charset：數據庫的字符集 as_dict：布爾值,指定返回值是字典還是元組 max_conn：最大連接數 |
2. Method
| autocommit(status) 布爾值,指示是否自動提交事務，默認的狀態是關閉的，如果打開，你必須調用commit()方法來提交事務。 關閉連接 cursor() 返回遊標對象，用於查詢和返回數據 commit() 提交事務。 回滾事務 pymssqlCursor類 用於從數據庫查詢和返回數據 rowcount 返回最後操作影響的行數。 返回創建遊標的連接對象 返回插入的最後一行 rownumber 返回當前數據集中的遊標（通過索引） |
3. 遊標方法
| close() 關閉遊標 execute(operation) 執行操作 執行操作，可以提供參數進行相應操作 executemany(operation, params_seq) 執行操作，Params_seq爲元組 fetchone()
|