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How to connect to a SQL Server 2012 on Azure using Records and pymssql as driver.
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#!/usr/bin/env python | |
# -*- coding: utf-8 -*- | |
""" | |
:mod:`records_mssql` | |
=================== | |
Created by hbldh <henrik.blidh@nedomkull.com> | |
Created on 2016-03-08 | |
How to connect to Microsoft Azure SQL Server 2012 using PyMSSQL package. | |
Gist connected to this blog post: | |
http://blog.nedomkull.com/connecting-to-sql-server-on-azure-with-python/ | |
How-to articles for Python + pymssql on Azure. | |
https://azure.microsoft.com/en-us/documentation/articles/sql-database-develop-python-simple-windows/ | |
https://azure.microsoft.com/en-us/documentation/articles/sql-database-develop-python-simple-mac-osx/ | |
https://azure.microsoft.com/en-us/documentation/articles/sql-database-develop-python-simple-ubuntu-linux/ | |
--- IMPORTANT --- | |
When installing pymssql from pypi via pip on Windows, | |
the resulting installation is not built to use encrypted connection | |
(i.e. does not include OpenSSL), which is required for connecting to Azure databases. | |
As per usual on Windows, go to Gohlke's page and download pre-built wheel: | |
http://www.lfd.uci.edu/~gohlke/pythonlibs/#pymssql | |
----------------- | |
""" | |
from __future__ import division | |
from __future__ import print_function | |
from __future__ import unicode_literals | |
from __future__ import absolute_import | |
database_server_name = 'nedomkulltest' | |
mssql_host = '{0}.database.windows.net'.format(database_server_name) | |
mssql_port = 1433 | |
mssql_user = 'dbadmin' | |
mssql_pwd = 'AlphaNumeric1' | |
mssql_db = 'exampledb' | |
mssql_driver = 'pymssql' | |
connection_string = 'mssql+{0}://{1}:{2}@{3}:{4}/{5}'.format( | |
mssql_driver, '{0}@{1}'.format(mssql_user, database_server_name), | |
mssql_pwd, mssql_host, mssql_port, mssql_db) | |
sql_query = """ | |
SELECT c.CustomerID, | |
c.CompanyName, | |
COUNT(soh.SalesOrderID) AS OrderCount | |
FROM SalesLT.Customer AS c | |
LEFT OUTER JOIN SalesLT.SalesOrderHeader AS soh ON c.CustomerID = soh.CustomerID | |
GROUP BY c.CustomerID, | |
c.CompanyName | |
ORDER BY OrderCount DESC; | |
""" | |
# Add this environment variable flag if you want FreeTDS | |
# (which powers pymssql) to output A LOT of debug data. | |
# import os | |
# os.environ['TDSDUMP'] = 'stdout' | |
print("Using PyMSSQL as it is.") | |
import pymssql | |
conn = pymssql.connect( | |
server=mssql_host, | |
port=mssql_port, | |
user='{0}@{1}'.format(mssql_user, database_server_name), # N.B. Use the server name only here! | |
password=mssql_pwd, | |
database=mssql_db) | |
cursor = conn.cursor() | |
cursor.execute(sql_query) | |
row = cursor.fetchone() | |
while row: | |
print(row) | |
row = cursor.fetchone() | |
print("Using PyMSSQL with SQLAlchemy") | |
from sqlalchemy import create_engine | |
engine = create_engine(connection_string) | |
results = engine.execute(sql_query) | |
for r in results: | |
print(r) | |
print("Using PyMSSQL with Records: SQL for Humans") | |
import records | |
db = records.Database(connection_string) | |
rows = db.query(sql_query) | |
for r in rows: | |
print(r) |
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