Database Optimization Guides
3 practical guides on database optimization, including “MySQL Lock Wait Timeout Exceeded in Laravel” and “MySQL Composite Index Optimization Guide”. Each article explains the problem, shows the fix with working code and points out what to watch for. New guides are added regularly, newest first.
MySQL Lock Wait Timeout Exceeded in Laravel
Still retrying jobs after a MySQL lock wait timeout exceeded error? Here's how to find the real blocking query in Laravel and fix it for good.
MySQL Composite Index Optimization Guide
Learn MySQL composite index optimization: leftmost-prefix rules, correct column ordering, covering indexes, and verifying gains with EXPLAIN plans.
PostgreSQL Indexing: A Practical Guide
A practical guide to PostgreSQL indexing — when to add one, which index type fits your query, and how to actually spot a slow query needing one.
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