Databases in Python

Databases in Python

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1. Introduction to SQLite

Whether you're new to databases or want to master SQLite, this course will teach you the essentials. You'll learn data management, and how to use SQLite effectively.

What is SQLite3 Library?

Connecting to Database

Creating a Simple Table

Challenge: First Table

2. CRUD

CRUD (Create, Read, Update, Delete) are the foundational operations in working with databases. This section is your gateway to mastering these core database functions. In the "CRUD Operations" section, we will delve into creating, retrieving, updating, and deleting data in a database. You will gain the skills needed to interact with databases effectively, making it an essential tool for your software development journey.

What is CRUD?

Creation Operations

Read Operations

Update Operations

Delete Operations

3. More About SQLite

Congratulations on reaching the final section of this course! You've come a long way in your journey to learn and master the content covered. In this concluding section, we'll summarize key takeaways, reinforce your knowledge, and provide guidance on what you can do next. You've acquired valuable skills and insights, and now it's time to reflect on your achievements and explore how to apply your newfound knowledge effectively.

Challenge: Table Design

4. SQLAlchemy

Learn how to interact with databases in Python using SQLAlchemy, a powerful Object-Relational Mapping (ORM) tool. This section covers setting up connections, defining models, and performing essential CRUD operations (Create, Read, Update, Delete). You'll discover how to write cleaner, more efficient code without relying on raw SQL queries. Mastering SQLAlchemy will streamline database management and enhance the scalability of your Python applications.

Object–Relational Mapping

Getting Started with SQLAlchemy

Creating Your First Model

Building SQLAlchemy Objects

Reading from DB

Deleting from DB

Course Content

Databases in Python

Databases in Python

What is CRUD?

CRUD is an acronym that stands for Create, Read, Update, and Delete – four fundamental operations for working with data in various database management systems (DBMS). In this chapter, we will delve into the basics of CRUD and its role in data management.

CRUD represents the following four essential operations for data interaction in any database:

Create: add new records to a database. For example, use it to add new users with data like names and emails;
Read: retrieve information from the database. Useful for fetching lists of users or products;
Update: modify existing data. For instance, change a user's address;
Delete: remove records from the database, like deleting a user's account.

CRUD in Development

CRUD operations are the backbone of any application that manages data. They enable applications to create, read, update, and delete information, which is essential for functionality across various programs: from blogs, where users can add and edit posts, to e-commerce sites, where admins manage products, and task management apps that let users track and update tasks.

1. Which CRUD operation allows you to modify an existing record in the database?

2. Which of the following CRUD operations is essential for working with databases?

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Section 2. Chapter 1

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