Python中操作MySQL入門執行個體

一、安裝MySQL-python
複製代碼 代碼如下:

# yum install -y MySQL-python

二、開啟資料庫連接
複製代碼 代碼如下:

#!/usr/bin/python
import MySQLdb

conn = MySQLdb.connect(user='root',passwd='admin',host='127.0.0.1')
conn.select_db('test')
cur = conn.cursor()

三、操作資料庫
複製代碼 代碼如下:

def insertdb():
sql = 'insert into test(name,`sort`) values ("%s","%s")'
exsql = sql % ('hello','python')
cur.execute(exsql)
conn.commit()
return 'insert success'

def selectdb():
sql = 'select `name` from test where `sort` = "%s"'
exsql = sql % ('python')
count = cur.execute(exsql)
for row in cur:
print row

print 'cursor move to top:'
cur.scroll(0,'absolute')

row = cur.fetchone()
while row is not None:
print row
row = cur.fetchone()

print 'cursor move to top:'
cur.scroll(0,'absolute')

many = cur.fetchmany(count)
print many

def deletedb():
sql = 'delete from test where `sort` = "%s"'
exsql = sql % ('python')
cur.execute(exsql)
conn.commit()
return 'delete success'

print insertdb()
print insertdb()
selectdb()
print deletedb()

四、關閉串連
複製代碼 代碼如下:

cur.close()
conn.close()

注意順序。

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