Python连接数据库

1.

import time
import pymysql
import pandas as pd
from datetime import datetime,timedelta

2.

cuor = pymysql.connect(host = "",
                      user = "",
                      password = "",
                      db = "<库名>")

3.

cur = cuor.cursor()

4.

ucol = "record_id pay_channel pay_config_key biz_scenario biz_serial_no pay_amount pay_description response_time pay_status stage user_id our_trans_number third_trans_number receipt create_time update_time".replace(" ",",")
sql1 = "select {0} ".format(ucol)
sql2 = "from mall_pay_record "
sql3 = "limit 10"
ec = cur.execute(sql1+sql2+sql3)
# print(ec)
ecfe = cur.fetchall()
# print(ecfe)

5.

ecpd = pd.DataFrame(ecfe,columns=ucol.split(','))
ecpd.head()

6.