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Expert Database Knowledge

Database Insights

Expert insights on database management, performance optimization, and reliability engineering from industry professionals

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Topics:
All Articles(217)Database Performance(40)MySQL(25)PostgreSQL(12)Database Engineering(31)Database SRE(24)Cloud Databases(20)Analytics & OLAP(9)NoSQL Databases(30)Database Architecture(18)High Availability(8)

Latest Articles

Showing 12 of 217 articles

A Practical Guide to Deploying and Managing MySQL InnoDB Cluster
High Availability

A Practical Guide to Deploying and Managing MySQL InnoDB Cluster

MySQL InnoDB Cluster combines Group Replication, MySQL Shell, and MySQL Router into a complete HA solution. Here's how to deploy and manage it in production.

7/1/2025
11 min
1
MySQL
High Availability
Read
Password Management in MySQL 8: Policies, Reuse, and Dual Passwords
MySQL

Password Management in MySQL 8: Policies, Reuse, and Dual Passwords

MySQL 8 introduced comprehensive password management — password validation policies, reuse history, expiration, and dual passwords for zero-downtime credential rotation.

5/12/2025
8 min
1
MySQL
Optimization
Read
Welcome PostgreSQL 18: A Revolutionary Leap in Database Performance and Developer Experience
Database Performance

Welcome PostgreSQL 18: A Revolutionary Leap in Database Performance and Developer Experience

Explore PostgreSQL 18 revolutionary features including async I/O, improved parallelism, enhanced JSON support, and developer experience improvements coming in 2025.

5/9/2025
10 min
8.8K
PostgreSQL
Performance
Read
Aurora MySQL vs RDS MySQL: The Definitive 2026 Comparison
Cloud Databases

Aurora MySQL vs RDS MySQL: The Definitive 2026 Comparison

Aurora and RDS share the MySQL engine but diverge at the storage layer in ways that produce very different cost and performance profiles — the right choice depends entirely on your I/O pattern.

4/22/2025
9 min
6
AWS
MySQL
Read
ClickHouse vs BigQuery: Analytical Database Comparison for 2026
Analytics & OLAP

ClickHouse vs BigQuery: Analytical Database Comparison for 2026

A detailed comparison of ClickHouse and BigQuery for analytical workloads — MergeTree engine vs Capacitor storage, self-hosted vs serverless cost models, query latency, real-time ingestion, and when to choose each.

4/14/2025
12 min
1
ClickHouse
Analytics
Read
Cloud SQL vs RDS vs Azure Database: Managed MySQL and PostgreSQL Compared for 2026
Cloud Databases

Cloud SQL vs RDS vs Azure Database: Managed MySQL and PostgreSQL Compared for 2026

A detailed comparison of Google Cloud SQL, Amazon RDS, and Azure Database for MySQL and PostgreSQL — HA architecture, failover times, connection pooling, pricing for equivalent instances, and platform-specific features.

3/18/2025
13 min
2
Cloud
AWS
Read
MongoDB 8.0 Replication: New Features, Improvements, and What Changed
NoSQL Databases

MongoDB 8.0 Replication: New Features, Improvements, and What Changed

MongoDB 8.0 brings significant replication improvements including faster elections, durable oplog writes, and changes to write concern behavior. Here's what changed and how to take advantage of it.

3/11/2025
8 min
2
MongoDB
NoSQL
Read
PostgreSQL Indexing Best Practices: The Complete Guide for Production
Database Performance

PostgreSQL Indexing Best Practices: The Complete Guide for Production

PostgreSQL offers multiple index types for different access patterns — and choosing wrong means slow queries or wasted space. A comprehensive guide to indexing strategy, from type selection to monitoring and maintenance.

3/7/2025
10 min
2
PostgreSQL
Indexing
Read
MariaDB vs MySQL in 2026: Which Should You Choose?
MySQL

MariaDB vs MySQL in 2026: Which Should You Choose?

MariaDB and MySQL have diverged significantly. This guide compares licensing, Galera vs Group Replication, thread pool, cloud support, and migration paths.

3/4/2025
9 min
3
MySQL
Open Source
Read
Master PostgreSQL Disaster Recovery: Backup, Restore, and PITR
Database SRE

Master PostgreSQL Disaster Recovery: Backup, Restore, and PITR

PostgreSQL disaster recovery requires more than just running pg_dump — it needs WAL archiving, PITR capability, regular restore testing, and clear RTO/RPO targets. Here's how to build it.

2/19/2025
12 min
1
PostgreSQL
Migration
Read
Handling Index Fragmentation in MongoDB: Detection and Remediation
NoSQL Databases

Handling Index Fragmentation in MongoDB: Detection and Remediation

MongoDB indexes fragment over time as documents are inserted, updated, and deleted. Here's how to detect fragmentation, measure its performance impact, and rebuild indexes safely.

2/18/2025
8 min
2
MongoDB
NoSQL
Read
MongoDB vs PostgreSQL in 2026: Choosing the Right Database for Your Data Model
NoSQL Databases

MongoDB vs PostgreSQL in 2026: Choosing the Right Database for Your Data Model

An honest comparison of MongoDB and PostgreSQL in 2026 — document model vs relational model, JSONB as a document store, ACID transaction trade-offs, horizontal scaling, licensing, and migration paths.

2/10/2025
12 min
1
MongoDB
PostgreSQL
Read
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