python调用mysql执行duplicate简单例子

#!/usr/bin/python
import MySQLdb
db=MySQLdb.connect("localhost","root","openos","python")
cur=db.cursor()
try:
sql="""INSERT INTO A (ID,NAME) VALUES (112,'%s') ON DUPLICATE KEY UPDATE NAME=VALUES(NAME);""" % "landpack"
cur.execute(sql)
db.commit()
except MySQLdb.Error,e:
print "MySQL error %d:%s" % (
e.args[0],e.args[1])

#!/usr/bin/python
import MySQLdb
db=MySQLdb.connect("localhost","root","openos","python")
cur=db.cursor()
try:
sql="""INSERT INTO B (ID,NAME,SEX,AGE) VALUES (12,'%s','%s',%d) ON DUPLICATE KEY UPDATE NAME=VALUES(NAME),
                           SEX=VALUES(SEX),AGE=VALUES(AGE);""" % ("mac","G",45)
cur.execute(sql)
db.commit()
except MySQLdb.Error,e:
print "MySQL error %d:%s" % (
e.args[0],e.args[1])