1、安装好python1.1安装python环境（anaconda）参考 我用的是Anaconda，已安装好 1.2安装cx_Oracle模块 wins+R输入cmd 命令窗口输入：pip install cx_Oracle 2、下载Oracle客户端 下载地址：https://www.oracle.com/database/technologies/instant-client/downloads.html。下载instantclient-basic-windows.x...
os.environ['NLS_LANG']='SIMPLIFIED CHINESE_CHINA.UTF8'#连接oracle#方法1:sqlalchemy 提供的create_engine()engine=create_engine('oracle+cx_oracle://scott:tiger@127.0.0.1:1521/ORCL')#方法2:cx_Oracle.connect()db=cx_Oracle.connect('scott','tiger','127.0.0.1:1521/ORCL')print(db.version)#查询...
Python+Pandas 读取Oracle数据库 importpandas as pd fromsqlalchemyimportcreate_engineimportcx_Oracle db=cx_Oracle.connect('userid','password','10.10.1.10:1521/dbinstance')print(db.version) cr=db.cursor() sql='select * from sys_user'cr.execute(sql) rs=cr.fetchall() zz=pd.DataFrame(rs);pri...
import pandas as pd import sys import imp imp.reload(sys) from sqlalchemyimport create_engine import cx_Oracle db=cx_Oracle.connect('userid','password','10.10.1.10:1521/dbinstance') print db.version cr=db.cursor() sql='select * from sys_user' ...
/usr/bin/env python# -*- coding:utf-8-*-#date:2021/3/14# filename: excel_to_db# author: kplinimport pandas as pdfrom sqlalchemy import create_enginefrom sqlalchemy import types# conn_string='oracle+cx_oracle://user:pass@host:port/dbname'conn_string='oracle+cx_oracle://KPLIN:...
DPI-1047是Oracle数据库连接错误,通常是由于缺少Oracle客户端库文件或配置不正确导致的。解决此错误的方法如下: 1. 确保已正确安装Oracle客户端:在连接Oracle数据库之前,...
import pandas as pd DATABASE = 'DB' SCHEMA = 'DEV' PASSWORD = 'password' connection_string = f'oracle://{SCHEMA}:{PASSWORD}@{DATABASE}' db_conn = sqlalchemy.create_engine(connection_string) df_to_insert = df[['GIORNO', 'MESE', 'ANNO']] #creates a dataframe with only the columns...
import pandas as pd import pymysql class MYSQL_DB(object): def __init__(self): self.host = "localhost" self.database = "mydb" self.user = "root" self.password = "root" self.port = 3306 self.charset = "utf8" def db_connection(self): return pymysql.connect( host=self.host, us...
dns = cx_Oracle.makedsn('ip地址','端口',service_name='服务名') #制作一个dsn engine = create_engine("oracle://用户名:密码@"+dns,encoding='utf-8', echo=True) #建立ORM连接 sql = "测试用sql语句" #输入sql代码 data = pd.read_sql(sql, engine) #使用pandas的数据库函数直接读取oracle数...
import pandas as pd import config import os import logging import logging.config from styleframe import StyleFrame, Styler, utils from send_email import send_mail logger = logging.getLogger("file") def connectToOracle(dsn_tns, username, password): ...