Databases & Backend

Relational Database Tuning: B-Tree Indexes, EXPLAIN ANALYZE, and Slow Query Remediation

Edson Feitosa de Oliveira Júnior
Edson Feitosa de Oliveira Júnior
Founder & Full Stack Developer

When database-driven web portals experience sluggish responses as datasets scale, unindexed queries triggering full sequential table scans are almost always to blame.

1. Profiling with EXPLAIN ANALYZE

Inspect query execution plans to identify bottleneck nodes, missing index scans, and unoptimized join operations.

PruPru Backend Engineering

We build robust Java (Spring Boot) and Node.js backend systems engineered for sub-millisecond database queries.

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