What are the advantages and disadvantages of SQLite databases?

The advantages and disadvantages of SQLite database are as follows:

Advantages:

1. Lightweight: SQLite is a lightweight database engine with a small library file size and low system resource consumption, making it suitable for use in embedded devices or environments with limited resources.
2. Zero configuration: SQLite database requires no complex setup and management, only one file is needed to store data, making it easy to use and deploy.
3. Single user: SQLite is a single-user database, suitable for personal use or small applications, without the need to worry about concurrent access issues.
4. High performance: SQLite utilizes optimized querying algorithms and indexing mechanisms, resulting in excellent performance for queries.
5. Atomicity: The transaction support in SQLite ensures atomicity, meaning either all operations are successfully executed or none of them are, ensuring data consistency and integrity.

Drawback:

1. Poor concurrency: Due to SQLite being a single-user database that does not support multiple processes or threads accessing the database at the same time, it is not well-suited for high-concurrency applications.
2. Storage capacity limitations: Due to SQLite storing the entire database in one file, there may be storage capacity limitations for applications that require storage of large amounts of data.
3. Not suitable for large-scale applications: SQLite is primarily designed for small applications and personal use, and may not perform well for large applications or those requiring processing of large amounts of data.
4. Feature limitations: Compared to other relational databases, SQLite has relatively fewer features and does not support complex database operations and advanced features, such as stored procedures and triggers.
5. SQLite database storage relies on the operating system’s file system; any issues with the file system could lead to database crashes or data corruption.