Connecting to SQL server from SQLAlchemy using odbc_connect

Question

I am new to Python and SQL server. I have been trying to insert a pandas df into our database for the past 2 days without any luck. Can anyone please help me debugging the e

Answer 1

As stated in the SQLAlchemy documentation, "The delimeters must be URL escaped" when using a pass-through exact pyodbc string.

So, this will fail ...

import pyodbc
from sqlalchemy import create_engine

params = r'DRIVER={SQL Server};SERVER=.\SQLEXPRESS;DATABASE=myDb;Trusted_Connection=yes'
conn_str = 'mssql+pyodbc:///?odbc_connect={}'.format(params)
engine = create_engine(conn_str)

... but this will work:

import pyodbc
from sqlalchemy import create_engine
import urllib

params = urllib.parse.quote_plus(r'DRIVER={SQL Server};SERVER=.\SQLEXPRESS;DATABASE=myDb;Trusted_Connection=yes')
conn_str = 'mssql+pyodbc:///?odbc_connect={}'.format(params)
engine = create_engine(conn_str)