Database & Infrastructure

Database Administration (PostgreSQL & MySQL)

Data is the most valuable asset of modern businesses. Database Administrators ensure enterprise relational databases perform with sub-millisecond query latency, zero data loss, and 99.999% uptime.

Curated 2026 Curriculum GuideProject-Based Track

PostgreSQLMySQLPgBouncerpgAdminPercona ToolkitAWS RDS / Aurora

🇮🇳 Indian Market Benchmark

Expected CTC Range₹6.0L – ₹18.0L LPA

Estimated Timeline10 – 14 Weeks

Demand Scope9,000+ Openings

Experience LevelIntermediate

Top Hubs:Hyderabad, Bengaluru, Pune, Chennai

Explore Career Compass Match

Core Track Highlights

High stability and mission-critical enterprise responsibility

Crucial role across Banking, Telecom, E-Commerce, and Healthcare

Direct path to Database Architect and Cloud Data Lead

Structured Phase-by-Phase Syllabus

Focus on build-by-doing milestones rather than passive video consumption.

Weeks 1-4

Phase 1: Relational Architecture & Index Tuning

Storage engines, WAL (Write-Ahead Logging), MVCC
EXPLAIN ANALYZE execution plan breakdown
B-Tree, GIN, GiST, and BRIN indexes

🎯 Milestone Proof Project: PostgreSQL Query Latency Optimization on 50M Rows.

Weeks 5-8

Phase 2: Replication & High Availability

Streaming replication (Sync vs Async)
Connection pooling with PgBouncer
Failover automation with Patroni

🎯 Milestone Proof Project: Zero-Downtime Multi-AZ PostgreSQL Cluster Setup.

Weeks 9-12

Phase 3: Backup, Disaster Recovery & Cloud RDS

Point-in-Time Recovery (PITR) with pgBackRest
Database migration with pg_dump and AWS DMS
Security, encryption at rest, and audit logging

🎯 Milestone Proof Project: Disaster Recovery Simulation & Automated Daily Backup Pipeline.

Technical Interview Questions & Answers

Q1: What is MVCC (Multi-Version Concurrency Control) in PostgreSQL?

MVCC allows readers not to block writers and writers not to block readers by maintaining multiple snapshot versions of data rows concurrently during transactions.