Python操做mysql之查詢數據

學python很久了，也沒寫過腳本，先來個mysql數據庫的查詢腳本吧.

1.首先要安裝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.腳本以下

#!/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()