Learn Database Design and Architect

Skill map, mental model, dan cara berpikir database architect yang production-grade: dari workload, invariant, storage, transaksi, hingga operasi.

Database as System of Truth

Database sebagai system of truth: authority, ownership, source of record, derived data, write authority, consistency boundary, dan failure mode saat kebenaran data terpecah.

Data Lifecycle and State Thinking

Deep dive into data lifecycle and state thinking for production-grade database design, including lifecycle stages, mutability, history, transitions, correction, deletion, archival, and state defensibility.

Workload-First Design

25 min

Production-grade workload-first database design, covering OLTP, OLAP, HTAP, query shapes, write paths, access patterns, consistency, latency, throughput, contention, and architectural tradeoffs.

Requirements to Data Model

28 min

Turning business requirements, workflows, policies, and operational constraints into a defensible data model that can survive real production use.

Entity Boundary and Ownership

Designing entity boundaries, aggregate ownership, lifecycle responsibility, and cross-domain references so a database model remains coherent as the system grows.

Conceptual, Logical, Physical Model

Conceptual, logical, and physical modelling as a disciplined bridge from business meaning to executable database design.

Invariants-First Database Design

A practical method for designing schemas from invariants, illegal states, constraints, transitions, and enforcement boundaries.

Relational Model Deep Dive

Deep dive into the relational model as a precision tool for modelling facts, predicates, constraints, relationships, keys, and queryable truth in production database architecture.

Normalization With Real Tradeoffs

A production-grade explanation of database normalization, functional dependencies, normal forms, update anomalies, lossless decomposition, and disciplined tradeoffs for real software systems.

Deep dive into cardinality, optionality, relationship modelling, association tables, relationship-as-entity design, and production-grade relationship constraints.

Time in Database Design

Deep dive into temporal database design, effective time, transaction time, bitemporal modelling, timestamp types, intervals, timezone strategy, and temporal invariants.

Audit, History, and Regulatory Traceability

Mendesain audit, history, dan regulatory traceability sebagai first-class database capability, bukan sekadar kolom created_at/updated_at.

Soft Delete, Archival, and Retention

Mendesain soft delete, archival, purge, legal hold, dan retention policy secara aman untuk sistem produksi dan regulatory-grade workloads.

Schema Design for State Machines

Mendesain schema database untuk state machine, transition, guard, transition history, dan pencegahan illegal state pada sistem produksi.

Modelling Workflows and Case Management

Mendesain database untuk workflow dan case management: case, task, assignment, escalation, SLA, decision, evidence, audit, queue, dan reporting.

Multi-Tenant Database Design

Mendesain database multi-tenant production-grade: isolation model, tenant-scoped schema, pooled/silo/hybrid topology, migration, backup, noisy neighbor, observability, dan tenant lifecycle.

Security Boundary in Schema Design

Mendesain security boundary di level schema: ownership, tenant boundary, access scope, ACL, membership, row-level policy, least privilege, sensitive columns, audit, support access, dan policy testing.

Physical Storage Mental Model

25 min

Memahami database dari sisi physical storage: page, block, heap, row layout, tuple version, buffer pool, WAL boundary, bloat, vacuum, row-store vs column-store, dan implikasi desain schema terhadap performa serta operabilitas.

B-Tree and Index Internals

Memahami B-Tree/B+Tree dan index internals: root/internal/leaf pages, search path, range scan, page split, composite index, covering index, partial/expression index, write amplification, bloat, dan strategi index untuk workload produksi.

Index Design for Production Workloads

Production-grade index design from workload, query shape, cardinality, selectivity, ordering, uniqueness, write amplification, and operational governance.

Query Planner and Cost Model

Deep dive into query planner mental model, statistics, cardinality estimation, cost model, access paths, join strategies, and production query plan diagnosis.

Reading Execution Plans

14 min

Membaca execution plan secara sistematis untuk mendiagnosis scan, join, sort, aggregate, estimasi cardinality, memory pressure, dan query latency di production.

SQL Query Shape and Performance

12 min

Mendesain bentuk SQL query yang selaras dengan index, planner, concurrency, pagination, aggregation, join, dan production latency.

Transaction Model Deep Dive

Deep dive transaction model untuk database design: ACID, transaction boundary, invariant, WAL, retry, idempotency, dan desain transaksi yang aman di sistem produksi.

Isolation Levels and Anomalies

Deep dive isolation levels dan concurrency anomalies: dirty read, non-repeatable read, phantom, lost update, write skew, read skew, serializable, dan cara memilih isolation untuk workload produksi.

MVCC, Locking, and Contention

Deep dive into MVCC, locking, contention, deadlocks, hot rows, and production diagnosis for database systems.

Concurrency Control Patterns

Production-grade concurrency control patterns for SQL-backed systems, including optimistic locking, pessimistic locking, guarded writes, idempotency, queues, retries, and invariant-safe transaction design.

Durability, WAL, and Crash Recovery

Durability, write-ahead logging, checkpoints, fsync, crash recovery, and the real contract behind a committed database transaction.

Backup, Restore, and Recovery Objectives

Backup, restore, RPO, RTO, point-in-time recovery, restore drills, blast-radius control, and the operational discipline behind recoverable databases.

Replication Models

27 min

Replication models for production databases, including leader-follower replication, synchronous and asynchronous commit, logical and physical replication, replication lag, failover, split-brain prevention, topology choices, and operational review checklists.

Read Scaling and Replica Consistency

Read scaling with replicas, stale reads, read-your-writes, session consistency, lag-aware routing, query classification, primary fallback, freshness contracts, and production failure modes.

Partitioning and Sharding

Partitioning and sharding from production architecture perspective: partition key, shard key, pruning, routing, rebalancing, hotspots, tenant distribution, and operational failure modes.

Distributed Transactions and Sagas

14 min

Distributed transactions and sagas in production systems: local transactions, 2PC, outbox, compensation, idempotency, orchestration, choreography, consistency boundaries, and failure modelling.

CAP, PACELC, and Real Tradeoffs

20 min

CAP, PACELC, and real tradeoffs for designing distributed database systems, including consistency, availability, latency, partition behavior, and business impact.

Distributed SQL Architecture

Distributed SQL architecture explained through ranges, consensus, replication, transaction routing, locality, schema design, and operational tradeoffs.

Key-Value and LSM Database Design

Key-value and LSM database design explained from storage internals, key design, access patterns, compaction, amplification, consistency, and production failure modes.

Document Database Design

Document database design explained through aggregate boundaries, embedding versus referencing, schema discipline, indexing, consistency, migrations, and production failure modes.

Wide-Column Database Design

20 min

Wide-column database design for production systems: partition key, clustering key, query-driven schema, denormalization, tombstone, hotspot, consistency, and operational failure modes.

Graph Database Design

Graph database design for production systems: property graph mental model, node and relationship modelling, traversal, indexes, path explosion, relational boundary, authorization, versioning, and failure modes.

Search and Vector Index-Aware Design

Search and vector index-aware design for production systems: inverted index, full-text search, semantic retrieval, hybrid search, filtered vector search, freshness, security, rebuild, and operational failure modes.

Choosing the Right Database Engine

A production-grade framework for choosing the right database engine based on workload, invariants, query shape, scale, consistency, operations, security, migration risk, and organizational capability.

Polyglot Persistence With Discipline

Polyglot persistence with discipline: how to use multiple database engines without turning architecture into inconsistent, ungoverned operational debt.

Application–Database Boundary

Application-database boundary design: how to structure data access, transaction boundaries, SQL ownership, ORM usage, repositories, and failure handling without hiding database reality.

Schema Evolution and Migration

Schema evolution and migration for production-grade database systems: compatibility, expand-contract, versioned contracts, online backfill, data correction, governance, testing, and rollback.

Zero-Downtime Database Changes

Zero-downtime database changes in production: safe DDL, compatibility rollout, online backfill, dual write, cutover, validation, rollback, incident handling, and operational playbooks.

Data Contracts at Database Boundary

Data contracts at the database boundary: compatibility, consumer impact, contract surfaces, schema governance, migration safety, and production-grade change control.

CDC and Event-Driven Database Integration

CDC and event-driven database integration: change data capture, outbox, ordering, replay, idempotency, snapshots, schema evolution, and exactly-once illusion.

Idempotency and Deduplication Design

20 min

Idempotency and deduplication design for retry-safe database write paths, event consumers, outbox/inbox pipelines, command tables, and production-grade duplicate prevention.

Data Quality and Constraint Strategy

Data quality and constraint strategy for production databases: invariant taxonomy, database constraints, validation layers, quality gates, quarantine, repair, observability, and governance.

Observability for Database Systems

Observability for database systems: metrics, logs, traces, query identity, wait events, locks, replication lag, autovacuum, slow queries, dashboards, alerts, and incident diagnosis.

Database Performance Engineering

Database performance engineering as a disciplined production process: workload baselines, bottleneck isolation, query/index/schema tuning, resource tuning, concurrency, autovacuum, capacity envelope, and regression prevention.

Load Testing and Benchmarking Databases

Production-grade database load testing and benchmarking: workload contracts, realistic data generation, concurrency ramp, saturation analysis, pgbench/custom scripts, read/write mixes, tail latency, bottleneck diagnosis, and benchmark reporting.

Capacity Planning and Growth Model

16 min

Capacity planning and growth modelling for production databases: demand model, storage growth, index amplification, WAL, memory, CPU, I/O, connections, tenant skew, retention, headroom, scaling triggers, forecasting, and cost-aware architecture decisions.

Hotspots, Skew, and High Cardinality

Production-grade treatment of hotspots, skew, and high-cardinality data: how bottlenecks emerge, how to detect them from database signals, and how to redesign keys, indexes, partitions, queues, counters, tenants, and observability dimensions before they become incidents.

Operational Runbooks for Database Incidents

Operational runbooks for production database incidents: triage, diagnosis, mitigation, escalation, evidence capture, and durable fixes for slow queries, lock storms, connection exhaustion, disk/WAL pressure, replication lag, bloat, bad migrations, noisy tenants, CDC failure, backup/restore failure, and data correctness incidents.

Failure Mode and Risk Modelling

Failure-mode and risk modelling for production-grade database architecture: failure taxonomy, blast radius, FMEA, fault trees, controls, degraded modes, and risk review method.

Database Security Architecture

23 min

Production-grade database security architecture: threat model, roles, privileges, network boundaries, encryption, secrets, audit, RLS, backups, CDC, admin access, and security review checklists.

Row-Level Security and Data Access Control

14 min

Row-level security dan data access control sebagai enforcement layer di database: policy model, tenant isolation, ABAC-style filtering, write protection, ownership, testing, observability, dan failure modes.

Privacy, Retention, and Compliance Design

12 min

Privacy, retention, and compliance design untuk database architecture: PII inventory, minimization, purpose limitation, masking, retention policy, legal hold, erasure, auditability, analytics boundary, dan operational proof.

Data Lineage and Provenance

Data lineage dan provenance untuk database architecture: origin, transformation, dependency graph, evidence-grade traceability, impact analysis, reconstruction, governance, dan operational proof.

Master Data, Reference Data, and Taxonomy

Master data, reference data, dan taxonomy untuk database architecture: trusted entities, reference lifecycle, hierarchy, versioning, stewardship, synchronization, mapping, and governance.

Analytical Modelling and Dimensional Design

Analytical modelling dan dimensional design untuk warehouse/reporting: grain, fact, dimension, star schema, SCD, snapshots, bridge tables, conformed dimensions, dan correctness contract.

Operational vs Analytical Data Boundaries

Operational vs analytical data boundaries: OLTP, OLAP, reporting correctness, workload isolation, freshness, reconciliation, semantic layer, CDC/ETL, and ownership.

Data Lakehouse and Warehouse Architecture

Data lakehouse and warehouse architecture for production-grade analytical platforms: lake, warehouse, lakehouse, bronze/silver/gold, table formats, governance, lineage, freshness, cost, and operational failure modes.

Query Serving Patterns

Query serving patterns for production database architecture: CQRS read models, materialized views, aggregate tables, projections, search indexes, cache-backed reads, freshness contracts, rebuildability, and consistency tradeoffs.

Large-Scale Reporting Design

Large-scale reporting design untuk sistem database production-grade: snapshot report, reproducible report, async report, export pipeline, freshness contract, authorization, reconciliation, dan failure modes.

Database Architecture Review Method

16 min

Metode review arsitektur database production-grade: review scope, evidence, invariants, workload, consistency, operations, security, failure modes, decision record, dan risk scoring.

Database Design Document Template

30 min

Template database design document production-grade ala internal engineering handbook: context, authority, invariants, workload, schema, transactions, migration, security, observability, DR, failure modes, dan review evidence.

Schema Review Checklist

Checklist review schema database production-grade: semantic grain, key, constraint, index, transaction, migration, tenant isolation, security, privacy, observability, failure modes, dan SQL diagnosis snippets.

Production Readiness Checklist

Production readiness checklist untuk database production-grade: ownership, schema, transaction, migration, backup, restore, observability, security, privacy, capacity, failure mode, dan operational runbook.

Case Study Regulatory Case Management Database

16 min

Case study database design untuk regulatory case management: case lifecycle, enforcement workflow, evidence, audit, SLA, escalation, access control, reporting, CDC, failure modes, dan production readiness.

Case Study: High-Volume Transaction Ledger

Case study production-grade untuk high-volume transaction ledger: double-entry thinking, immutable journal, balance projection, idempotency, reconciliation, concurrency, reporting, dan failure-mode modelling.

Case Study: Multi-Tenant SaaS Platform

Case study production-grade untuk multi-tenant SaaS platform: tenant isolation, data partitioning, lifecycle, catalog, RLS, noisy neighbor, tenant migration, reporting, backup/restore, dan operational governance.

Case Study: Event-Driven Operational Database

12 min

Case study production-grade untuk event-driven operational database: canonical write model, transactional outbox, CDC, projection, replay, ordering, idempotency, failure recovery, dan operational governance.

Case Study: Distributed Global Application

Case study production-grade untuk distributed global application: region topology, data homing, consistency contract, failover, latency, data residency, conflict avoidance, global identifiers, and operational readiness.

Common Database Design Smells

Catalog production-grade untuk common database design smells: gejala, akar masalah, dampak, cara diagnosis, contoh schema buruk, perbaikan, dan review checklist.

Refactoring Bad Database Design

Production-grade handbook untuk refactoring bad database design: strategy, expand-contract, strangler migration, compatibility layer, backfill, validation, cutover, rollback, data repair, and governance.

Database Architecture Decision Framework

29 min

Production-grade framework untuk memilih, menjustifikasi, dan mempertahankan keputusan arsitektur database berdasarkan authority, invariant, workload, consistency, scale, security, operasi, dan evolusi.

Engineering Leadership for Database Design

Engineering leadership untuk menaikkan kualitas database design lintas tim: ownership, review culture, paved road, governance, migration discipline, incident learning, dan maturity model.

Database Design Interview and Review Drills

Advanced database design interview and architecture review drills for practicing production-grade reasoning, tradeoff analysis, invariant modelling, workload analysis, and failure-mode review.

Final Synthesis and Top 1% Playbook