database connection using python

Publicado em: 11 Dezembro 2023
no canal de: CodeFix

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Sure, I'd be happy to provide a tutorial on connecting to a database using Python. In this example, I'll use the popular SQLite database, which is a lightweight, file-based database.
Before you begin, make sure you have SQLite installed on your system. You can download it from the official SQLite website: https://www.sqlite.org/download.html
Additionally, you'll need the sqlite3 library, which is included in Python by default.
In this example, we'll create a simple SQLite database called example.db with a single table named employees.
Save the above code in a file, for example, create_db.py, and run it using:
Now, let's create a Python script to connect to the database, insert data, and query the data.
Save the above code in a file, for example, db_operations.py, and run it using:
This script connects to the SQLite database, inserts two records into the employees table, queries all the records, and prints the results.
Congratulations! You've successfully created a SQLite database, connected to it using Python, and performed basic operations. This example is a starting point, and you can adapt the code for other databases by using appropriate connection libraries like psycopg2 for PostgreSQL or mysql-connector-python for MySQL.
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