SQLite Cheatsheet 02 — WAL Mode
Cheatsheet: WAL pragmas, checkpoints, concurrency.
Cheatsheet
ClickHouse Cheatsheet 02 — MergeTree Engines
Cheatsheet: MergeTree, Replacing, Summing, Aggregating, Collapsing.
MongoDB Cheatsheet 02 — Schema Design
Cheatsheet: embed vs reference, when to denormalize, anti-patterns.
Redis Cheatsheet 02 — Data Types
Cheatsheet: lists, hashes, sets, zsets, bitmaps, hyperloglog.
AI/LLM Cheatsheet 02 — Prompt Engineering
Cheatsheet: prompt patterns, system messages, few-shot, CoT, role play.
Linux Cheatsheet 02 — Files and Permissions
Cheatsheet: chmod, chown, umask, ACL, attributes, find.
Nginx Cheatsheet 02 — Reverse Proxy
Cheatsheet: proxy_pass, upstreams, headers, websockets, buffering.
Kubernetes Cheatsheet 02 — Deployments and ReplicaSets
Cheatsheet: Deployment YAML, rollout, scale, rollback, strategy.
Docker Cheatsheet 02 — Writing Dockerfiles
Cheatsheet: FROM, RUN, COPY, multi-stage, ARG vs ENV, BuildKit mounts.
Django Cheatsheet 02 — Django ORM
Cheatsheet: filter/exclude, F/Q, select_related, prefetch_related, annotate.