Laravel DB Transaction with Try-Catch for Deadlocks

Database transactions in Laravel can encounter deadlocks when performing multiple operations across tables. A robust solution uses try-catch blocks to detect deadlock exceptions and implements exponential backoff retry logic (100ms, 200ms, 400ms, etc.) for up to five attempts. The pattern wraps DB transactions in a while loop that breaks on success or throws exceptions for non-deadlock errors immediately. This approach uses lock-for-update queries and is particularly valuable for high-traffic applications with concurrent database operations, though it may be overengineering for simpler projects.