Blog & Insights
Engineering insights, best practices, and technology guides from the SIMA DigiTech team.
Database Indexing Strategies for High-Traffic Applications
Composite indexes, covering indexes, and when indexing hurts more than it helps.
MySQL Query Optimization in Practice
Read EXPLAIN plans, fix slow joins, and write queries the optimizer can actually use.
How Redis Caching Reduces Database Load in PHP
Cache-aside patterns, TTLs, and invalidation for lower database load and faster responses.
PostgreSQL vs. MySQL: Choosing a Relational Database
An honest comparison of features, performance, and ecosystem to guide your decision.
Database Normalization vs. Performance
When to normalize for integrity and when deliberate denormalization improves performance.
Database Transactions and Data Integrity
ACID properties, isolation levels, and keeping your data consistent under concurrency.
Read Replicas and Database Scaling
Scale reads with replicas, handle replication lag, and know when to shard.
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