python访问Oracle及Mysql数据库

Posted 2021-01-28 WapN

# !/usr/local/python
# -*- coding: utf-8 -*-
import cx_Oracle
import pymysql

# --------oracle链接数据库----------------------------
student1 = {‘id‘: 1011,
            ‘name‘: 7,
            ‘age‘: 18}
conn = cx_Oracle.connect(‘czth_sales/[email protected]:1521/ORCL‘)
sql1 = ‘select * from student where id=%s‘ % (student1[‘id‘])
cur = conn.cursor()
cur.execute(sql1)
result = cur.fetchall()
print(‘oracle查询：‘, result)

sql = ‘insert into student values(%s,%s,%s)‘ % (student1[‘id‘], student1[‘name‘], student1[‘age‘])
cur.execute(sql)
conn.commit()

# --------mysql链接数据库----------------------------
# conn = pymysql.connect(host ="134.175.103.124",port =3306,user= "wapn", password="123456", db="czth", charset=‘utf8‘)
config = {
    ‘host‘: ‘134.175.103.124‘,
    ‘port‘: 3306,
    ‘user‘: ‘wapn‘,
    ‘password‘: ‘123456‘,
    ‘db‘: ‘czth‘,
    ‘charset‘: ‘utf8‘,
    ‘cursorclass‘: pymysql.cursors.DictCursor
}
conn = pymysql.connect(**config)
cursor = conn.cursor()

sql = ‘SELECT * FROM  th_user_info‘
count = cursor.execute(sql)
result = cursor.fetchall()
print(‘mysql查询:‘, result)

# 如果没有设置自动提交事务，则这里需要手动提交一次
conn.commit()
# 发生错误时回滚
conn.rollback()
# 关闭游标连接
cursor.close()
# 关闭数据库连接
conn.close()