python操作mysql

import os, sys, string
import MySQLdb

#连接数据库
try:
    conn = MySQLdb.connect(host=‘127.0.0.1‘,user=‘root‘,passwd=‘feng‘,db=‘test‘)
except Exception, e:
    print e
    sys.exit()
# 获取cursor对象来进行操作
cursor = conn.cursor()

#插入单条数据
sql = "insert into staffinfo(i_staff_no,v_staff_name) values (%d, ‘%s‘)"%(333,"ccc")
try:
    cursor.execute(sql)
except Exception, e:
    print e
#插入多条数据
sql = "insert into staffinfo(i_staff_no,v_staff_name) values (%s, %s)"#此处都是%s类型
val = ((444,"ddd"),(555,"eee"), (666,"fff"))
try:
    cursor.executemany(sql, val)
except Exception, e:
    print e

#查询数据
sql= "select * from staffinfo order by i_staff_no"
cursor.execute(sql)
alldata = cursor.fetchall()
# 如果有数据返回，就循环输出, alldata是有个二维的列表
if alldata:
    for rec in alldata:
        print rec[0], rec[1]

cursor.close()
conn.close()

DELIMITER //  
create procedure python_pro_param(in _i_staff_no int,out _v_staff_name varchar(50))
begin
    select v_staff_name into _v_staff_name
    from staffinfo
    where i_staff_no=_i_staff_no;
end
//
DELIMITER  ;

import os, sys, string
import MySQLdb

i_staff_no=222
v_staff_name=‘‘

try:
    conn = MySQLdb.connect(host=‘127.0.0.1‘,user=‘root‘,passwd=‘feng‘,db=‘test‘)
except Exception, e:
    print e
    sys.exit()
       
cursor=conn.cursor()   
cursor.callproc(‘python_pro_param‘,(i_staff_no,v_staff_name))   
cursor.execute(‘select @_python_pro_param_0,@_python_pro_param_1‘)#0:第一个参数
data=cursor.fetchall()                                            #1:第二个参数
if data:
    for rec in data:     
        v_staff_name=rec[1]   
        print i_staff_no,v_staff_name

cursor.close()
conn.close()

DELIMITER //  
create procedure python_pro_dataset(in _i_staff_no_start int,in _i_staff_no_end int)
begin
    select i_staff_no,v_staff_name
    from staffinfo
    where i_staff_no between _i_staff_no_start and _i_staff_no_end;
end
//
DELIMITER  ;

import os, sys, string
import MySQLdb

i_staff_no_start=222
i_staff_no_end=555

try:
    conn = MySQLdb.connect(host=‘127.0.0.1‘,user=‘root‘,passwd=‘feng‘,db=‘test‘)
except Exception, e:
    print e
    sys.exit()

cursor=conn.cursor()        
cursor.execute(‘call python_pro_dataset(%s,%s)‘,(i_staff_no_start,i_staff_no_end))   
data=cursor.fetchall()   
if data:
    for rec in data:   
        print rec[0],rec[1]
        cursor.nextset()

cursor.close()
conn.close()