Backend Engineering Track · Android Java → Java/Spring Boot
PostgreSQL & SQL Mastery
A complete, ground-up path from database fundamentals to production-grade PostgreSQL, SQL performance tuning, and Spring Boot/JPA integration — built to get you interview-ready for Java Backend and Spring Boot roles. Every topic below is scoped to become its own standalone lesson page.
⏱ 60 days core plan
📚 24 modules
🧩 104 topics
🕒 8–10 hrs/day
🎯 Focus: PostgreSQL + ANSI SQL
Pacing is flexible. The module order and depth below is fixed, but the
timeline isn't — the same 24 modules stretch cleanly into a
30-day sprint (skim theory, focus on practice + interview Qs),
a 60-day standard plan (8–10 hrs/day, full depth), or a
90-day relaxed plan (3–4 hrs/day alongside a job). Day ranges shown per
module assume the 60-day pace — divide by 2 for 30 days, multiply by 1.5 for 90 days.