python 程式碼如下：

# -*- coding:utf-8 -*-
import pandas as pd
import pymysql
import sys
from sqlalchemy import create_engine

def read_mysql_and_insert():
 
 try:
  conn = pymysql.connect(host='localhost',user='user1',password='123456',db='test',charset='utf8')
 except pymysql.err.OperationalError as e:
  print('Error is '+str(e))
  sys.exit()
  
 try:
  engine = create_engine('mysql+pymysql://user1:123456@localhost:3306/test')
 except sqlalchemy.exc.OperationalError as e:
  print('Error is '+str(e))
  sys.exit()
 except sqlalchemy.exc.InternalError as e:
  print('Error is '+str(e))
  sys.exit()
  
 try: 
  sql = 'select * from sum_case'
  df = pd.read_sql(sql,con=conn) 
 except pymysql.err.ProgrammingError as e:
  print('Error is '+str(e))
  sys.exit() 

 print(df.head())
 df.to_sql(name='sum_case_1',con=engine,if_exists='append',index=False)
 conn.close()
 print('ok')
 
if __name__ == '__main__': 
 df = read_mysql_and_insert()

另外需要注意的還有。

1） test資料庫裡有兩個表，建表語句如下：

CREATE TABLE `sum_case` ( 
 `type_id` tinyint(2) DEFAULT NULL,`type_name` varchar(5) DEFAULT NULL,KEY `b` (`type_name`) 
) ENGINE=InnoDB DEFAULT CHARSET=utf8; 

CREATE TABLE `sum_case_1` ( 
 `type_id` tinyint(2) DEFAULT NULL,KEY `b` (`type_name`) 
) ENGINE=InnoDB DEFAULT CHARSET=utf8; 

插入初始資料

insert into sum_case (type_id,type_name) values (1,'a'),(2,'b'),(3,'c') 

2）建立user1使用者

grant select,update,insert on test.* to 'user1'@'localhost' identified by '123456' 

以上這篇python3 pandas 讀取MySQL資料和插入的例項就是小編分享給大家的全部內容了，希望能給大家一個參考，也希望大家多多支援我們。