Beginner
SQL Foundations for Engineers
Readable SQL, explain plans, and practical patterns for services that talk to PostgreSQL every day.
￥128,000
Details →11
years shipping cohorts
38h
median mentor reply window
62%
learners citing lab repos in interviews
9.1 / 10
session clarity (internal surveys)
4
time zones supported live
Database paths you can defend in review
- Ship SQL and schema changes with measured plans and rollback notes.
- Run HA drills that name lag budgets instead of hiding behind dashboards.
- Finish a capstone repo reviewers can execute locally without magic env vars.
Inclusions mapped to your workload
Mentor diffs
Pull requests receive line-level commentary tied to syllabus outcomes, not generic praise.
Runbooks you keep
Drills export to Markdown so your team can fork them into internal wikis.
Honest scope
We call out what Postgres handles versus when a warehouse or stream processor should enter.
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Advanced
PostgreSQL Internals Studio
Buffers, WAL, checkpoints, and vacuum mechanics without hand-wavy diagrams.
￥198,000
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Intermediate
Indexing and Query Shapes
btree, partial indexes, and covering plans for OLTP-ish workloads.
￥156,000
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Intermediate
Transactions and Isolation
Serializable quirks, predicate locks, and designing around anomalies.
￥142,000
Details →From recent cohorts
“The checkpoint rehearsal doc from Replication and HA Patterns is now appendix C in our DR binder — concrete, not theatrical.”
Indexing lab forced me to defend INCLUDE columns with numbers, not vibes.
Ryo · logistics analytics
Short critique: Security Basics RLS module is dense — still worth it for the performance caveat alone.
Keiko · SMB SaaS security champion
Signals we answer often
We provide interview story coaching and portfolio reviews. Hiring outcomes depend on market conditions and your effort; we avoid promises we cannot audit.
Cloud vendor credits, certification exam fees, and travel for in-person electives are not bundled unless a written enterprise addendum says otherwise.
Core materials are English with JP mentor office hours on several cohorts. Fully JP-written tracks are not offered today.
Request the syllabus pack
We will send PDF outlines for Sysgen Cloudx tracks plus calendar constraints for Japan-friendly evening blocks. No payment links — pricing stays informational until contracts are countersigned.
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