python MySQLdb

一、插入数据
import MySQLdb

conn = MySQLdb.connect(host='127.0.0.1',user='root',passwd='1234',db='mydb')
cur = conn.cursor()
reCount = cur.execute('insert into UserInfo(Name,Address) values(%s,%s)',('eddy','china'))
conn.commit()
cur.close()
conn.close()

print reCount

二、批量插入数据
import MySQLdb
conn = MySQLdb.connect(host='127.0.0.1',user='root',passwd='1234',db='mydb')
cur = conn.cursor()
li =[
('eddy','china'),
('eddy1','china'),
]
reCount = cur.executemany('insert into UserInfo(Name,Address) values(%s,%s)',li)

conn.commit()
cur.close()
conn.close()
print reCount

三、删除数据
import MySQLdb
conn = MySQLdb.connect(host='127.0.0.1',user='root',passwd='1234',db='mydb')
cur = conn.cursor()
reCount = cur.execute('delete from UserInfo')
conn.commit()
cur.close()
conn.close()

print reCount

四、修改数据
import MySQLdb

conn = MySQLdb.connect(host='127.0.0.1',user='root',passwd='1234',db='mydb')
cur = conn.cursor()
reCount = cur.execute('update UserInfo set Name = %s',('alin',))
conn.commit()
cur.close()
conn.close()

print reCount

五、查数据
# ############################## fetchone/fetchmany(num)  ##############################

import MySQLdb

conn = MySQLdb.connect(host='127.0.0.1',user='root',passwd='1234',db='mydb')
cur = conn.cursor()

reCount = cur.execute('select * from UserInfo')

print cur.fetchone()
print cur.fetchone()
cur.scroll(-1,mode='relative')
print cur.fetchone()
print cur.fetchone()
cur.scroll(0,mode='absolute')
print cur.fetchone()
print cur.fetchone()

cur.close()
conn.close()

print reCount

# ############################## fetchall  ##############################

import MySQLdb

conn = MySQLdb.connect(host='127.0.0.1',user='root',passwd='1234',db='mydb')
cur = conn.cursor()

reCount = cur.execute('select Name,Address from UserInfo')

nRet = cur.fetchall()

cur.close()
conn.close()

print reCount
print nRet
for i in nRet:
print i[0],i[1]