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Patroni: Cascading Replication with Standby Cluster – PostgreSQL High Availability Guide

PostgreSQL has become the database of choice for organizations that demand reliability, and Patroni sits at the center of most production-grade PostgreSQL high availability deployments. In this in-depth guide we walk through one of Patroni's [...]

Should I Rebuild My PostgreSQL Index? When and How to REINDEX

Few maintenance questions generate as much confusion in the PostgreSQL community as this one: should I rebuild my PostgreSQL index, and if so, how often? Database administrators arriving from other systems frequently ask, "How can [...]

Key management in PostgreSQL encryption and TDE key handling

Key Management in PostgreSQL: Why Encryption Depends on It

Key management in PostgreSQL has quietly moved from a "nice to have" to a hard requirement for most deployments. Data-at-rest encryption is now a baseline expectation, yet encryption alone rarely tells the full story. The [...]

Five NoSQL Data Platforms That Changed the Way We Do Data Processing

NoSQL data platforms changed the way we do data processing more profoundly than almost any other shift in modern engineering. For most of the last four decades, the relational database was the only serious answer [...]

PostgreSQL Rogue Index Troubleshooting Tips and Tricks in PostgreSQL 17

If you have been managing PostgreSQL databases for any length of time, you have almost certainly run into the situation where an index that was supposed to help your queries is somehow making things worse. [...]

btree_gist improvements in PostgreSQL 18

Troubleshooting SQL Server 2022 IOPs for Optimal Performance

SQL Server 2022 IOPS (Input/Output Operations Per Second) performance is one of the most critical — and most frequently misdiagnosed — bottlenecks in production database environments. SQL Server 2022 introduces significant architectural enhancements, yet I/O [...]

SQL Server 2025 Maximum Availability: Complete Guide to Always On, Failover Clustering, and High Availability Architecture

SQL Server 2025 High Availability has reached a new frontier with Microsoft's most advanced release to date. Whether you are a database administrator architecting enterprise workloads, a cloud engineer designing multi-region deployments, or a DevOps [...]

MySQL Query Optimization & EXPLAIN: A Complete Guide for DBAs and Developers

Master MySQL query optimization using EXPLAIN and EXPLAIN ANALYZE. This comprehensive guide covers composite index design, covering indexes, anti-patterns like full table scans and N+1 queries, cursor-based pagination, Performance Schema query analysis, and the MySQL Optimizer Trace for MySQL DBAs and developers.

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MySQL Slow Query Log Table: A Practical Guide to Identifying and Fixing Performance Bottlenecks

The MySQL slow query log table is one of the most practical tools available to database administrators who need to identify and fix performance bottlenecks—yet it remains widely misunderstood. Every DBA eventually faces the same [...]

InnoDB Recovery and the Buffer Pool Size Paradox: Why Bigger Isn’t Always Better

InnoDB Recovery Buffer Pool sizing is one of the most impactful—yet misunderstood—factors in MySQL performance. Database administrators have long operated under a straightforward assumption: the larger the InnoDB buffer pool, the better the performance. For [...]

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