![]() The code for this is: db.execute("CREATE TABLE IF NOT EXISTS users (name TEXT, age NUMBER, fav_food STRING)") SQL stores data in tables, which are similar to tables found in Excel or Google Sheets. The next step is to create a table in the database. The first step is to create a database.db file in the root directory, which you can do by entering the following command in the terminal: touch database.dbĪt this point, the following code should be added to main.py: from cs50 import SQL I’ll be using CS50’s SQL library, which you can install by running pip3 install cs50. I’m using Replit’s online IDE, but you are welcome to follow along on any IDE you like.įirst, I’ll create a Python project with a main.py file. ![]() Here is an example of using SQLite with Python. It’s more useful to learn, in case you are ever tasked with using SQL or MySQL in the future.It’s lightweight, so it performs better and faster than reading from a CSV file.C is a statically-typed, compiled language which is much faster than most languages, including Python. But SQLite has many advantages over using a CSV file: Therefore, it is extremely fast and can efficiently handle complex queries.Ī SQLite database is stored as a disk file, similar to a CSV (comma-separated values) file. SQLite is an embedded SQL (Structured Query Language) database engine library that works with many languages.Īccording to the official website, SQL text is compiled into bytecode, which is then run by a virtual machine. This tutorial will explain many basic concepts and simple operations, so that you can understand how to work with databases better. Many software developer positions involve working with databases, and if you ever consider creating a full-scale application (such as a social media app or an online game), you'll definitely need a database too. Learning SQLite is a great way to learn how databases operate and how to perform basic CRUD (create, read, update, delete) operations. In this tutorial, you'll learn how to use SQLite with Python. After all, we need to collect data in a location where we can digitally access it for reading, writing, updating, and deleting. In this tutorial, you have learned how to insert rows into tables in the SQLite database from a Python program.Databases are a crucial component in software development. mode column Code language: Shell Session ( shell )Īnd use this SELECT statement to query data from the projects table: SELECT * FROM projects Code language: Shell Session ( shell )Īnd use the following SELECT statement to query data from the tasks table: SELECT * FROM tasks Code language: SQL (Structured Query Language) ( sql ) Use these commands to format the output: sqlite>. Task_2 = ( 'Confirm with user about the top requirements', 1, 1, project_id, '', '')Ĭreate_task(conn, task_2) Code language: Python ( python )Īnd call the main() function: if _name_ = '_main_':ĭef create_connection (db_file): """ create a database connection to the SQLite databaseįinally, connect to the database via sqlite3 shell and query data from the projects and tasks tables to check if the data has been inserted successfully. Task_1 = ( 'Analyze the requirements of the app', 1, 1, project_id, '', '') Project_id = create_project(conn, project) Project = ( 'Cool App with SQLite
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