Working with QSqlRelationalTableModel

Understand how we use the QSqlRelationalTableModel to create an application.

We'll cover the following

Creating the application

Using PyQt's QSqlRelationalTableModel to interact with relational databases is what we'll demonstrate now. With support for leveraging foreign keys, the QSqlRelationalTableModel class offers a model for viewing and changing data in a SQL table. An SQL constraint called a foreign key is used to connect tables.

Firstly, we must import the modules required for the application.

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