What is SQLAlchemy?

 SQLAlchemy a toolkit for Python programming language. You can build full blown database applications with it and use the full range of the SQL Language. It is also a Object Relational Mapper(ORM).

SQLAlchemy is what you need (libraries and other tools) for building data-centric apps using Python and using other libraries the possibilities are limitless including AI and Machine Learning.

SQLAlchemy and connecting to data:

The connectors are elements that connect your application to data but in the case of SQLAlchemy they are called 'database dialects'. There are database dialects for each kind of database. These are the most common kinds:

SQLite: A lightweight, disk-based database that doesn’t require a separate server process.

https://hodentekmsss.blogspot.com/2016/09/sqlite-using-visual-studio-community.html

PostgreSQL: A powerful, open-source object-relational database system.

https://hodentekmsss.blogspot.com/search?q=postgresql

MySQL: A widely used open-source relational database management system.

https://hodentekmsss.blogspot.com/2024/11/install-latest-mysql-and-improve.html

Oracle: A proprietary database management system by Oracle Corporation.

https://hodentekmsss.blogspot.com/2013/11/a-collection-of-sql-server-related.html

Microsoft SQL Server: A relational database management system by Microsoft.

https://hodentekmsss.blogspot.com/2024/11/sql-server-2025-ready-to-go.html

MariaDB: A community-developed fork of MySQL.

https://hodentekhelp.blogspot.com/2015/11/how-do-you-access-mariadb-in-xampp.html

These connectors make it easy to connect SQLAlchemy to various database systems, ensuring compatibility and flexibility in developing data-centric applications.

If you are looking for working with databases, stay in and learn from over 15 years of blogging on databases here.

You may also have a look at my database related books:

You may

Connecting to SQL Server 2012 using HeidiSQL

 HeidiSQL is a client application and you can use it to work with databases. If you want to know more about it, or download and install HeidiSQL go here.

Launch HeidiSQL from your desktop or click the HeidiSQL app from the All Apps menu shown.

The Heidi Session Manager is launched as shown.

 
Heidi_Session_00.png

Click New and choose Session in root folder from the drop-down list as shown.

Heidi_Session_01.png

You can change the session name by over-writing as shown. Herein it is Nov21.

Heidi_Session_02.png

By default the connection is to MySQL using TCP/IP and localhost(127.0.0.1)

Let us change the Network type to Microsoft SQL Server using TCP/IP by using the drop-down menu shown.

Heidi_Session_03.png

Choose Windows authentication as shown.

Heidi_Session_04.png

Click Open. The connection is refused.

 Heidi_Session_05.png

OK. Let us look if the SQL Server has started. Open the Control Panel|...|Services and verify that the server has started. Indeed it is running (option chosen at SQL Server Installation).

Heidi_Session_06.png

Now let us change the Hostname /IP to Hodentek8\RegencyPark (over write 127.0.0.1)
Click Open after changing the hostname.
 You may get a save modifications message.

 
Heidi_Session_07.png

Click Yes. The program processes this information and the client is now connected to the named instance of SQL Server 2012 as shown.


Heidi_Session_08.png

Now you are cooking!

In some cases MySQL may be lot cheaper than SQL Server

In a forthcoming webinar Oracle will discuss how you may reduce your database TCO by more than 90%, Wow!!

* Estimated savings for 3 year database TCO with MySQL Enterprise Edition vs. Microsoft SQL Server 2012 Enterprise Edition, with the following hardware configuration: 4 Intel x86_64 Servers, with 4 CPUs per Server and 8 Cores per CPU.

Look out for this webinar on the internet,

"Developing Windows Applications with MySQL: Part III, Migrating from Microsoft SQL Server to MySQL

Date: Thursday, February 27, 2014
Time: 9:00 AM PST
"
Register for the webinar here:
http://vshow.on24.com/vshow/itwebcastcenter/#exhibits/mysql

Come prepared reading about MySQL Workbench.
Download Microsoft Workbench here;
http://dev.mysql.com/downloads/tools/workbench/