error when connecting oracle in python using cx_Oracle

Question

I was trying to connect oracle database using python like below.

import cx_Oracle
conn = cx_Oracle.connect(\'user/password@host:port/database\')

Answer 1

Here is the full program to connect Oracle using python. First, you need to install cx_Oracle. to install it fire the below command.

pip install cx_Oracle

import cx_Oracle

def get_databse_coonection():
    try:
        host='hostName'
        port ='portnumber'
        serviceName='sid of you database'
        user = 'userName'
        password = 'password'
        dns = cx_Oracle.makedsn(host,port,service_name=serviceName)
        con = cx_Oracle.connect(user, password, dns)
        cursor = con.cursor()   
        query ="select * from table"
        cursor.execute(query)
        for c in cursor:
            print(c)
    except cx_Oracle.DatabaseError as e: 
        print("There is a problem with Oracle", e) 
    finally:
        if cursor:
            cursor.close()
        if con:
            con.close()

get_databse_coonection()