python读写mysql

# 从mysql读数据

import pymysql
import pandas as pd

db = pymysql.connect(host="127.0.0.1", port=3306, user="root", passwd="密码", database='数据库名', charset='utf8')
sql = 'select * from wd_test'
data = pd.read_sql(sql, db)
print(data)

# 向mysql中写数据

import pymysql
db = pymysql.connect(host="127.0.0.1", port=3306, user="root", passwd="密码", database='数据库', charset='utf8')
data = {
    'id': '20191202',
    'name': 'Jack',
    'mobile': 56789
}
table = 'wd_test1'
keys = ', '.join(data.keys())
values = ', '.join(['%s'] * len(data))
sql = 'insert into {table}({keys}) values ({values})'.format(table=table, keys=keys, values=values)
cursor = db.cursor()
try:
    cursor.execute(sql, tuple(data.values()))
    print('Successful')
    db.commit()
except ConnectionError:
    print('Failed')
    db.rollback()
cursor.close()
db.close()

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