python脚本对 MySQL 数据库进行增删改查

# -*- coding: utf-8 -*-
import pymysql
 xlrd
 import codecs
#连接数据库
conn = pymysql.connect(host='127.0.0.1',port=3306,user=root'',db=test_hvrutf8')
cursor = conn.cursor()

 查询数据库
effect_row = cursor.execute("select * from kkpb_account where user_name='18800000000'")
row_1 = cursor.fetchmany(10)
print(row_1)
for row in row_1:
    with open(ha.xlsa)as f:
        f.write(str(row[0]))
     print(row[0])

 使用预处理语句创建表 sql = """CREATE TABLE EMPLOYEE (          FIRST_NAME  CHAR(20) NOT NULL,          LAST_NAME  CHAR(20),1)">          AGE INT,1)">          SEX CHAR(1),1)">          INCOME FLOAT )""" cursor.execute(sql)

 数据库插入数据 s_id='25' name='aaa' price='154.21' sql="insert into stu (id) VALUES ('%s')"%(s_id,) add_row=cursor.execute(sql)

 删除数据 name='asds' sql="delete from user where name = '%s'" % name dele_row=cursor.execute(sql)

 更新数据 userid='10' sql="update user set price=124.21 where userid='%s'"%userid upd_row=cursor.execute(sql)

conn.commit()
cursor.close()
conn.close()