Question 1

How do I use prepared statements in sqlite3-ruby?

Accepted Answer

Use the `prepare` method on a SQLite3::Database instance to create a SQLite3::Statement object, then execute it with bound parameters for efficiency. Remember to add manual locks if sharing statements across threads, as detailed in the README.

Question 2

Is sqlite3-ruby thread safe for a Rails app with Puma?

Accepted Answer

Yes, but only if you share Database instances directly; prepared statements require your own locking. The README provides examples of safe patterns, but it's not fully automatic, so care is needed in high-concurrency setups.

Question 3

sqlite3-ruby vs ActiveRecord for SQLite in Ruby projects

Accepted Answer

Use sqlite3-ruby for low-level, direct SQLite control without ORM overhead, ideal for scripts or custom database layers. ActiveRecord is better for Rails apps needing migrations, models, and convention-over-configuration, but sqlite3-ruby offers more raw performance and flexibility.

Question 4

How to handle database connections when forking processes with sqlite3-ruby?

Accepted Answer

The gem automatically closes writable connections in child processes to prevent corruption, but for optimal safety, close connections before forking or use `SQLite3::ForkSafety.suppress_warnings!` if you understand the risks, as explained in the fork safety section.

Question 5

What are the performance limits of sqlite3-ruby for web apps?

Accepted Answer

Performance is capped by SQLite's single-writer model, meaning high write concurrency can cause locks and slowdowns. Use transactions and batch inserts for efficiency, but consider a client-server database for heavy loads.

Question 6

How to install sqlite3-ruby on Linux with a custom SQLite build?

Accepted Answer

Ensure SQLite 3.6.16 or newer is installed system-wide, then install the gem; if issues arise, check INSTALLATION.md for troubleshooting native extension compilation and library paths.

SQLite3

What is SQLite3?

Overview

Use Cases

Best For

Related Projects

Found a gem we're missing?

Not Ideal For

Pros & Cons

Pros

Cons

Frequently Asked Questions