Object Relational Mapping - Learn Data Science with Travis

Travis chat

Object Relational Mapping

Object Relational Mapping (ORM) is a programming technique that facilitates the interaction between object-oriented programming languages and relational databases. It acts as an abstraction layer, allowing developers to manipulate database entities through objects and classes instead of writing SQL queries directly. This simplifies data management and enhances productivity, especially in web application development.

ORMs enable developers to perform Create, Read, Update, and Delete (CRUD) operations using the programming language they are comfortable with, such as Python. For instance, instead of writing SQL statements, developers can use ORM libraries like SQLAlchemy or Peewee to interact with the database. This can speed up development by allowing a more seamless workflow without switching between SQL and the programming language ¹²⁴.

Additionally, ORMs can provide flexibility in switching between different relational databases with minimal changes to the code. This is particularly useful for applications that may need to transition from one database system to another during development or production ²⁴.

Object Relational Mapper

Python in Plain English

In practice, an ORM acts as an abstraction layer between the application code and the relational database, significantly simplifying the management of stored data. This means that we can manipulate da...

Object-relational Mappers (ORMs)

Full Stack Python

Object-relational mappers (ORMs) bridge relational databases and data represented in Python code.

Part VI: SQL and Object Relational Mapping

Learn More Python 3 The Hard Way

Part VI: SQL and Object Relational Mapping In this part of the book we're going to cover something that doesn't quite fit into the rest of the book's structure, but is a very necessary topic for junio...

Object-relational Mapping with SQLAlchemy

Analytics Vidhya

Object-relational Mapping (ORM) is a technique used to map objects to a database. With ORMs, we can directly create tables with classes and data in the tables with the objects (instance of the class)…...

Mastering Database Relationships: One-to-Many, Many-to-Many, and Everything in Between

JavaToDev

When creating software, you often need to store data in a database. One of the most important parts of working with databases is understanding relationships between tables. In this article, we will ex...

The Story Behind Mapping in Solidity

Better Programming

A look at Solidity’s approach to hash table Continue reading on Better Programming

Introduction To OOP: Objects

Level Up Coding

What is Object Oriented Programming? Object-oriented programming aims to implement real-world entities like objects. What are objects in OOP? Introduction To OOP: Objects This article was first publi...

Unraveling the Power of One-to-One, One-to-Many, and Many-to-Many Relationships

Javarevisited

Introduction: When it comes to designing databases, how different pieces of data relate to each other is super important. Think of it like a big puzzle where each piece has to fit just right. That’s ...

Transitive Relationships And Rules in Object-Role Modeling

Towards Data Science

The picture above shows a transitive relationship expressed within an Object-Role Model (ORM), and rules expressed within a derived fact type. In some data science exercises, transitive relationships…...

Improve Your Data Wrangling With Object Oriented Programming

Towards Data Science

This is the result of a simple, inescapable truth — data in the real world doesn’t normally come nicely wrapped up in a Pandas dataframe with a pretty little bow on top. And since better quality data…...

Introduction to Object Oriented Programming

Python Like You Mean It

Why OOP Might Not Map Well to Your Database Schema

ArjanCodes

To what level can you apply object-oriented design principles to databases? Where do the similarities between OO programming languages and databases end? 👷 Join the FREE Code Diagnosis Workshop to he...