Question 1

What is SQLite and how does it differ from other relational databases?

Accepted Answer

SQLite is an open-source, self-contained, and serverless relational database management system (RDBMS) that operates on the C library. Unlike other databases such as MySQL or PostgreSQL, SQLite doesn't require a separate server and stores the entire database in a single file. This makes SQLite lightweight, fast, and suitable for applications that need a simple embedded database.

Question 2

How secure is SQLite and can it be used for sensitive data?

Accepted Answer

SQLite has a reasonable level of security, but it lacks some advanced security features like encryption and user authentication mechanisms found in other RDBMSs. For applications requiring a high level of security or handling sensitive data, consider using a more robust solution like MySQL or PostgreSQL with encryption and access control features enabled.

Question 3

Can SQLite handle multiple concurrent users?

Accepted Answer

SQLite is primarily designed for single-user applications and can handle a limited number of concurrent write transactions. While it can handle multiple users reading data at the same time, it may not be ideal for applications with heavy concurrent write loads. In such cases, using a more robust RDBMS such as MySQL or PostgreSQL may be more appropriate.

Question 4

Are there size limitations on SQLite databases?

Accepted Answer

SQLite has a maximum database size of 140 terabytes, which is sufficient for most use cases. However, if your application requires managing an extremely large amount of data, you might want to consider using a more powerful database management system such as PostgreSQL or MySQL.

Question 5

Is SQLite ACID-compliant?

Accepted Answer

Yes, SQLite is ACID-compliant, ensuring that database transactions are consistent, isolated, and durable. This means that in the event of a crash or power loss, SQLite will maintain data consistency without losing any committed transactions.

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Alternatives to SQLite