cx_Oracle doesn't connect when using SID instead of service name on connection string

Question

I have a connection string that looks like this

con_str = \"myuser/mypass@oracle.sub.example.com:1521/ora1\"

Where ora1 is the

Answer 1

I thought during a while that I would not be able to use Magic SQL (%sql, %%sql) because of service name issue in connection that would force to use the alternative way described above with cx_Oracle.connect(), cx_Oracle.makedsn()... I finally found a solution working for me: declare and set a variable for the service name first and then use it in the command (since not working if literal string for service name put in the command !)

import cx_Oracle

user='youruser'
pwd='youruserpwd'
dbhost='xx.xx.xx.xx'
service='yourservice'

%load_ext sql
%sql oracle+cx_oracle://$user:$pwd@$dbhost:1521/?service_name=$service

output (what you get in successful connection):

u'Connected: youruser@'