从python读取sql的实例方法

 # sql文件夹路径
sql_path = 'sql文件夹路径' + '\\'
 
# sql文件名， .sql后缀的
sql_file = 'sql文件名.sql'
 
# 读取 sql 文件文本内容
sql = open(sql_path + sql_file, 'r', encoding = 'utf8')
sqltxt = sql.readlines()
# 此时 sqltxt 为 list 类型
 
# 读取之后关闭文件
sql.close()
 
# list 转 str
sql = "".join(sqltxt)
 
import pandas as pd
import pymysql
con = pymysql.connect(host = "机器", 
           user = "用户名", password = '密码', 
           db = "数据库名", charset='utf8')
# charset用于修正中文输出为问号的问题
 
df = pd.read_sql(sql, con)
con.close()

import pandas as pd
import pymysql
con = pymysql.connect(host = "localhost", 
           user = "root", password = '12', 
           db = "test", charset='utf8')
#charset用于修正中文输出为问号的问题
sql = "select * from score;"
df = pd.read_sql(sql, con)
con.close()