Python连接Oracle数据库

1. 安装python 3.6.3 x64的版本, 同时选择安装pip等component

Python 3.6.3 (v3.6.3:2c5fed8, Oct 3 2017, 18:11:49) [MSC v.1900 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.

pip信息

pip 9.0.1 from d:workpython36libsite-packages (python 3.6)

2. 增加环境Oracle的instant client 并且放到环境变量中, 

3. 安装cx_Oracle

pip install cx_Oracle

我已经安装过了 所以提示.

Requirement already satisfied: cx_Oracle in d:workpython36libsite-packages

4. 尝试连接字符串

在python 中引入 cx_Oracle

import cx_Oracle

创建db

db=cx_Oracle.connect('LCOI709999/Test6530@10.24.13.85/ora12cr2')

定义SQL变量

sql='select count(1) from gspuser'

创建游标

cur=db.cursor()

定义执行

cur.execute(sql)

获取结果

usercount=cur.fetchall()

打印结果

print('%s' %usercount)