Database Archives - Page 2 of 18

Mastering MongoDB Indexing: ESR Rule and Query Profiling with explain()

October 10, 2026

Slow MongoDB queries usually trace back to misplaced compound index keys and expensive in-memory sorts. Learn how to profile query execution plans with explain() and apply the Equality, Sort, Range (ESR) rule to cut query latency from seconds to milliseconds.

Database

Mastering pgAudit in PostgreSQL: Production Audit Logging and Security Monitoring Guide

October 9, 2026

Learn how to configure pgAudit in PostgreSQL for production audit logging and compliance monitoring. Discover object-level auditing to track sensitive queries with minimal performance overhead.

Database

MongoDB Aggregation Pipeline: Process, Group, and Transform Complex Data

October 8, 2026

After six months running MongoDB's aggregation pipeline across two production deployments, here's an honest comparison of approaches, real performance numbers, and practical code examples covering grouping, array unwinding, joins, and time-based reporting — from basic stages to full Python integration.

Database

Redis Streams: Consumer Groups, XADD, XREADGROUP and Dead Letter Queue Best Practices

October 8, 2026

Redis Streams give you a persistent message queue with consumer groups, delivery guarantees, and dead letter queue support — all without leaving your existing Redis setup. This guide walks through XADD, XREADGROUP, consumer group configuration, and a practical reaper pattern for handling failed messages.

Database

Using pg_repack to Fix Table and Index Bloat in PostgreSQL Without Locking Tables

October 8, 2026

PostgreSQL's MVCC model creates dead tuples over time, causing table and index bloat that slows queries and wastes disk space. This guide covers how to use pg_repack to reclaim that space in production with zero table locks — including installation, usage patterns, and ongoing monitoring.

Database

Mastering DuckDB: The Fast In-Process OLAP Database for Serverless Analytics

October 7, 2026

Analyze large CSV and Parquet files instantly without spinning up database servers. This tutorial demonstrates how DuckDB provides serverless, in-process OLAP performance for fast local analytics and cross-source queries.

Database

ClickHouse on Docker: Setup and High-Performance OLAP Query Optimization

October 7, 2026

Deploy ClickHouse with Docker Compose, design high-throughput MergeTree schemas, and implement Materialized Views for sub-millisecond analytical aggregations across large datasets.

Database

Getting Started with Neo4j and Cypher: Modeling and Querying Complex Relationships

October 6, 2026

Tired of slow multi-table SQL joins? Learn how to run Neo4j with Docker, model complex graphs, and write Cypher queries for fast relationship traversals.

Database

Change Data Capture with Debezium and Apache Kafka: Streaming PostgreSQL Changes in Real Time

October 6, 2026

Dual-writing and scheduled database polling cause data drift and disk I/O spikes. Learn how to implement reliable, real-time Change Data Capture (CDC) from PostgreSQL to Kafka with Debezium.

Database

Deploying Qdrant on Docker: A 6-Month Production Review for RAG and Semantic Search

October 5, 2026

A hands-on production review of running Qdrant on Docker for 20M+ embeddings. Includes Docker Compose templates, scalar quantization benchmarks, gRPC tuning, and Prometheus monitoring configs.