Security
SQL Injection in 2026: Still a Problem, Here's How to Stop It
SQL injection remains a top vulnerability. Learn how SQLi works, why ORMs are not enough, and how to prevent it with parameterized queries and defense in depth.
9 min read·
#PostgreSQL
8 articles
Databases
NoSQL vs SQL: An Honest Decision Framework
A practical comparison of SQL and NoSQL databases. Covers MongoDB, Redis, DynamoDB, Cassandra, and Neo4j vs PostgreSQL with real trade-offs, code examples, and a decision framework for choosing the right database.
10 min read·
Databases
Time-Series Databases: When PostgreSQL Isn't Enough
A practical guide to time-series databases. Compare TimescaleDB, InfluxDB, Prometheus, and ClickHouse. Learn TSDB architecture, compression, downsampling, and when to upgrade from plain PostgreSQL.
9 min read·
Databases
Connection Pooling: Why PgBouncer Exists and How It Works
A complete guide to PostgreSQL connection pooling with PgBouncer. Covers the process-per-connection model, pooling modes (session, transaction, statement), configuration, Kubernetes deployment patterns, and alternatives.
10 min read·
Databases
Database Sharding vs Partitioning: Scaling Out Your Data Layer
A practical guide to database sharding and partitioning in PostgreSQL. Covers range, list, and hash partitioning, consistent hashing, cross-shard queries, resharding, and when to choose each strategy.
10 min read·
Databases
ACID Properties Explained: What Database Transactions Actually Guarantee
A practical guide to ACID properties in PostgreSQL. Covers atomicity, consistency, isolation levels (Read Committed through Serializable), durability, and the anomalies each isolation level prevents.
11 min read·
Databases
Database Replication Explained: Primary-Replica, Sync vs Async
A complete guide to PostgreSQL streaming replication. Covers WAL shipping, synchronous vs asynchronous modes, replica lag monitoring, failover with Patroni, and physical vs logical replication trade-offs.
10 min read·
Databases
PostgreSQL Indexes Explained: B-Tree, GIN, GiST, Hash, and BRIN
A complete guide to PostgreSQL index types. Learn when to use B-Tree, Hash, GIN, GiST, BRIN, and partial indexes with real SQL examples, EXPLAIN ANALYZE verification, and index maintenance strategies.
14 min read·