python 代码如下：
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# -*- coding:utf-8 -*-import pandas as pdimport pymysqlimport sysfrom sqlalchemy import create_enginedef 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() |
另外需要注意的还有。
1） test数据库里有两个表，建表语句如下：
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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; |
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CREATE TABLE `sum_case_1` ( `type_id` tinyint(2) DEFAULT NULL, `type_name` varchar(5) DEFAULT NULL, KEY `b` (`type_name`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8; |
插入初始数据
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insert into sum_case (type_id,type_name) values (1,'a'),(2,'b'),(3,'c') |
2）创建user1用户
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grant select, update,insert on test.* to 'user1'@'localhost' identified by '123456' |
以上这篇python3 pandas 读取MySQL数据和插入的实例就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持服务器之家。
原文链接：https://blog.csdn.net/uvyoaa/article/details/74421911
