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Databases in Python
Databases in Python
Building SQLAlchemy Objects
In this chapte, you'll learn how to set up your database session and add data to the database using SQLAlchemy. By the end, you'll understand how to create a session, add a new record, and save it. After creating the model, you can proceed to creating objects and saving them to the database.
1. Set Up the Session
A session is your primary tool for interacting with the database. Use sessionmaker
to bind the engine and create a session:
The Session()
function creates an active session that serves as a workspace for staging and preparing database operations before they are committed.
2. Add a New Object
To add data, follow these steps:
- Create an Object
Instantiate a model class (e.g.,Product
) with the required attributes. - Stage the Object
Add the object to the session withadd()
. - Save the Changes
Commit the session to finalize the transaction.
Завдання
- Initialize the database session using
Session
. - Create a new object of the
Product
class with the specified attributes. - Add the new object to the session using the appropriate method.
- Commit the transaction to save changes to the database.
Дякуємо за ваш відгук!
Building SQLAlchemy Objects
In this chapte, you'll learn how to set up your database session and add data to the database using SQLAlchemy. By the end, you'll understand how to create a session, add a new record, and save it. After creating the model, you can proceed to creating objects and saving them to the database.
1. Set Up the Session
A session is your primary tool for interacting with the database. Use sessionmaker
to bind the engine and create a session:
The Session()
function creates an active session that serves as a workspace for staging and preparing database operations before they are committed.
2. Add a New Object
To add data, follow these steps:
- Create an Object
Instantiate a model class (e.g.,Product
) with the required attributes. - Stage the Object
Add the object to the session withadd()
. - Save the Changes
Commit the session to finalize the transaction.
Завдання
- Initialize the database session using
Session
. - Create a new object of the
Product
class with the specified attributes. - Add the new object to the session using the appropriate method.
- Commit the transaction to save changes to the database.
Дякуємо за ваш відгук!
Building SQLAlchemy Objects
In this chapte, you'll learn how to set up your database session and add data to the database using SQLAlchemy. By the end, you'll understand how to create a session, add a new record, and save it. After creating the model, you can proceed to creating objects and saving them to the database.
1. Set Up the Session
A session is your primary tool for interacting with the database. Use sessionmaker
to bind the engine and create a session:
The Session()
function creates an active session that serves as a workspace for staging and preparing database operations before they are committed.
2. Add a New Object
To add data, follow these steps:
- Create an Object
Instantiate a model class (e.g.,Product
) with the required attributes. - Stage the Object
Add the object to the session withadd()
. - Save the Changes
Commit the session to finalize the transaction.
Завдання
- Initialize the database session using
Session
. - Create a new object of the
Product
class with the specified attributes. - Add the new object to the session using the appropriate method.
- Commit the transaction to save changes to the database.
Дякуємо за ваш відгук!
In this chapte, you'll learn how to set up your database session and add data to the database using SQLAlchemy. By the end, you'll understand how to create a session, add a new record, and save it. After creating the model, you can proceed to creating objects and saving them to the database.
1. Set Up the Session
A session is your primary tool for interacting with the database. Use sessionmaker
to bind the engine and create a session:
The Session()
function creates an active session that serves as a workspace for staging and preparing database operations before they are committed.
2. Add a New Object
To add data, follow these steps:
- Create an Object
Instantiate a model class (e.g.,Product
) with the required attributes. - Stage the Object
Add the object to the session withadd()
. - Save the Changes
Commit the session to finalize the transaction.
Завдання
- Initialize the database session using
Session
. - Create a new object of the
Product
class with the specified attributes. - Add the new object to the session using the appropriate method.
- Commit the transaction to save changes to the database.