What is sqlite3 Library?

SQL Dialects

Imagine that a database is like a storage place for information. Each database can be a bit different, like different languages, and to make your program understand and interact with that database, you need a special "translator" or library.

For example, if you have different friends, and each of them speaks a different language, you need to know each friend's language to communicate with them. Similarly, each database (like MySQL, PostgreSQL, or SQLite) has its own "language", and you need the corresponding "library" to make your program capable of understanding and communicating with that database. For SQLite, we use the sqlite3 library.

About sqlite3 library

The sqlite3 library is a standard module in the Python programming language that provides an interface for interacting with SQLite databases. SQLite is a lightweight and embedded relational database management system, and the sqlite3 library allows you to CREATE, READ, UPDATE, and DELETE data in SQLite databases from your Python code.

The key features and capabilities of the sqlite3 library include:

• Connecting to a Database: You can establish a connection to an SQLite database and open it for further operations;
• Creating Tables: You can create new tables in the database, defining their schemas and columns;
• Executing SQL Queries: You can execute SQL queries, such as SELECT, INSERT, UPDATE, and DELETE, to retrieve, update, and delete data from tables;
• Parameterized Queries: You can use parameterized queries for safely inserting data into tables and preventing SQL injection;
• Transactions: The sqlite3 library supports transactions, allowing you to group multiple operations into a single atomic operation;
• Reading and Writing Database Files: You can read and write SQLite database files;
• Exception Handling: The library provides mechanisms for handling errors and exceptions during interactions with the database.