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By Kevin McAleer, 2 Minutes
import sqlite3 # Create a database and establish a connection connection = sqlite3.connect('mydatabase.db') # Create a table connection.execute(''' CREATE TABLE IF NOT EXISTS books ( id INTEGER PRIMARY KEY, title TEXT, author TEXT, year INTEGER ) ''') # Insert data into the table books_data = [ ("The Great Gatsby", "F. Scott Fitzgerald", 1925), ("To Kill a Mockingbird", "Harper Lee", 1960), ("Pride and Prejudice", "Jane Austen", 1813) ] connection.executemany('INSERT INTO books (title, author, year) VALUES (?, ?, ?)', books_data) # Query data from the table result = connection.execute('SELECT * FROM books') data = result.fetchall() # Display the retrieved data for row in data: print(f"Title: {row[1]}") print(f"Author: {row[2]}") print(f"Year: {row[3]}") print() # Close the database connection connection.close()
In this demo program, we create a database named “mydatabase.db” and establish a connection to it using the sqlite3 module. We then create a table named “books” with columns for book title, author, and year. Next, we insert some sample data into the table using the executemany() method.
sqlite3
executemany()
After inserting the data, we retrieve it from the table using a SELECT statement. The fetchall() method returns all rows as a list, which we iterate over and display the title, author, and year of each book.
fetchall()
Finally, we close the database connection to ensure proper cleanup.
You can run this program to see the database creation, data insertion, and retrieval in action. Make sure to have the sqlite3 module installed and adjust the database file path as needed.
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