python MysqlDb模块安装及其使用详解

pip install python-mysql

#!/usr/bin/python 
# -*- coding: UTF-8 -*-  
import MySQLdb  
# 连接数据库      连接地址  账号  密码   数据库   数据库编码  
db = MySQLdb.connect("localhost", "root", "123456", "test" , charset="utf8") 
 
# 使用cursor()方法获取操作游标 
cursor = db.cursor() 
 
# 使用execute方法执行SQL语句 
cursor.execute("SELECT VERSION()") 
 
# 使用 fetchone() 方法获取一条数据库。 
data = cursor.fetchone() 
 
print "Database version : %s " % data 
 
# 关闭数据库连接 
db.close() 

#!/usr/bin/python 
# coding=utf-8 
import MySQLdb 
import os, sys 
import json 
class MysqlDb(object): 
 
  def __init__(self): 
    self.host = "127.0.0.1" 
 
  @staticmethod 
  def get_connect(): 
    db = MySQLdb.connect(self.host , "mail_report", "mail_report", "mailawst", charset="utf8") 
    return db 
 
  def get_mysql_info(self,start_time,end_time): 
    tmp = [] 
    db = self.get_connect() 
    sql = 'select send_time,mail_id,mail_addr,server_domain,server_ip,mail_status from real_mail_log where send_time > "%s" and send_time < "%s" limit 10;' % (start_time,end_time) 
    cursor = db.cursor() 
    cursor.execute(sql) 
    values = cursor.fetchall() 
    for i in values: 
      data = {} 
      data["send_time"] = str(i[0]) 
      data["mail_id"] = str(i[1]) 
      data["mail_addr"]= str(i[2]) 
      data["server_domain"] = str(i[3]) 
      data["server_ip"] = str(i[4]) 
      data["mail_status"]= str(i[5].encode('utf8'))   
      tmp.append(data) 
    data = json.dumps(tmp,ensure_ascii=False) 
    db.close() 
    return data 
 
def main(): 
  u = MysqlDb() 
  print u.get_mysql_info('2017-05-01 00:00:02','2017-05-01 00:50:03')  
if __name__ == '__main__': 
  main() 

#!/usr/bin/python 
# -*- coding: UTF-8 -*-  
import MySQLdb 
 
# 打开数据库连接 
db = MySQLdb.connect("localhost", "root", "123456", "test") 
 
# 使用cursor()方法获取操作游标 
cursor = db.cursor() 
 
# SQL插入语句 
ins_sql = """INSERT INTO EMPLOYEE(FIRST_NAME, 
     LAST_NAME, AGE, SEX, INCOME) 
     VALUES ('yu', 'jie', 20, 'M', 8000)""" 
 
ins_sql1 = 'insert into employee(first_name, last_name, age, sex, income) values (%s, %s, %s, %s, %s)' 
 
# SQL查询语句 
sel_sql = 'select * from employee where first_name = %s' 
 
# SQL更新语句 
upd_sql = 'update employee set age = %s where sex = %s' 
 
# SQL删除语句 
del_sql = 'delete from employee where first_name = %s' 
try: 
  # 执行sql语句 
  # insert 
  cursor.execute(ins_sql) 
  cursor.execute(ins_sql1, ('xu', 'f', 20, 'M', 8000)) 
  # select 
  cursor.execute(sel_sql, ('yu',)) 
  values = cursor.fetchall() 
  print values 
  # update 
  cursor.execute(upd_sql, (24, 'M',)) 
  # delete 
  cursor.execute(del_sql, ('xu',)) 
 
  # 提交到数据库执行 
  db.commit() 
except: 
  # 发生错误时回滚 
  db.rollback() 
 
# 关闭数据库连接 
db.close()