python database connection example
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in this tutorial, we will learn how to connect python to a database using the popular library called sqlite3. sqlite is a lightweight database engine that is widely used for its simplicity and ease of integration into applications. we will cover the steps to connect to a sqlite database, perform basic operations such as creating a table, inserting data, querying data, updating data, and deleting data.
before starting this tutorial, make sure you have the following installed:
python comes with a built-in module sqlite3, so there's no need to install it separately.
first, let's import the sqlite3 module and connect to a sqlite database. if the database file does not exist, sqlite will create it.
now, let's create a table in the database. we'll create a simple table called users with columns id, name, and age.
let's insert some sample data into the users table.
now, let's retrieve data from the users table.
we can also update existing data in the table.
finally, let's delete data from the table.
after completing all operations, it's good practice to close the connection to the database.
that's it! you've learned how to connect python to a sqlite database and perform basic operations such as creating a table, inserting, querying, updating, and deleting data. feel free to explore more advanced features and functionalities of sqlite and the sqlite3 module.
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