使用pandas+create_engine查询数据表

pandas+create_engine：连接数据库，返回DataFrame类型的结果

导包

from sqlalchemy import create_engine
import pandas as pd

连接

获取连接引擎engine

engine = create_engine('mysql+pymysql://root:dong@localhost:3306/stu?charset=utf8')

sql语句

sql = 'select * from student'
sql = 'select name,sum(year(age)) as 年龄和 from student'

查询

pd.read_sql_query(sql,engine)
返回值类型：pandas.core.frame.DataFrame