Python中操作MySQL入门实例

一、安装mysql/' target='_blank'>mysql-python/' target='_blank'>python
复制代码 代码如下:
# yum install -y MySQL-Python

二、打开数据库连接
复制代码 代码如下:
#!/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、操作数据库
复制代码 代码如下:
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、关闭连接
复制代码 代码如下:
cur.close()
conn.close()

注意顺序。