Python操作mysql之查询数据

学python好久了，也没写过脚本，先来个mysql数据库的查询脚本吧.

1.首先要安装MySQLdb
[root@python ~]# pip install MySQL-python
Collecting MySQL-python
Downloading MySQL-python-1.2.5.zip (108kB)
100% |████████████████████████████████| 112kB 171kB/s
Building wheels for collected packages: MySQL-python
Running setup.py bdist_wheel for MySQL-python ... done
Stored in directory: /root/.cache/pip/wheels/38/a3/89/ec87e092cfb38450fc91a62562055231deb0049a029054dc62
Successfully built MySQL-python
Installing collected packages: MySQL-python
Successfully installed MySQL-python-1.2.5

2.脚本如下

#!/usr/bin/env python
# -*- coding: utf-8 -*-
'''
Date:2016-11-08
Author:Bob
'''

import MySQLdb

def python_mysql_query():

#Open the database connection
db = MySQLdb.connect(host='localhost',user='ossec',passwd='mysql0123',db='ossec',port=3306, charset='utf8')

#Gets the operation cursor
cursor = db.cursor()

#SQL statement query
#sql = "select * from data where id < '%d'" % (5)
sql = "select * from data limit 5"

try:
#Execute the SQL statement
cursor.execute(sql)

#Receive all return results
results = cursor.fetchall()

#Traverse the print list
for i in results:
print i

except:
print "Error: unable to fecth data"

#Close the cursor
cursor.close()

#Close the database connection
db.close()

if __name__ == '__main__':
python_mysql_query()