🐘 PostgreSQL Cheat Sheets

Master PostgreSQL with 7 comprehensive modules covering Foundations, Advanced Querying, Indexing, PL/pgSQL, JSONB, Partitioning, and Administration

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7 / 7 modules shown

📅 Learning Timeline (18 Weeks)

Weeks 1-2
Foundations
Data Types
DDL/DML
Weeks 3-4
Basic CRUD
psql CLI
Schema Design
Weeks 5-6
Advanced JOINs
CTEs
Subqueries
Weeks 7-8
Window Functions
ROLLUP/CUBE
Analytics
Weeks 9-10
Index Types
EXPLAIN ANALYZE
Query Optimization
Weeks 11-12
PL/pgSQL
Procedures
Triggers
Weeks 13-14
JSONB
Semi-structured
JSON Path
Weeks 15-16
Partitioning
Sharding
Scaling
Weeks 17-18
Admin
Security
Replication

🎯 Practice Projects

Project 1: Analytics Dashboard
📚 Modules 1-2
Build real-time analytics with time-series data, JSON/JSONB fields, and complex analytical queries using window functions and CTEs.
  • Create time-series tables with rich data types
  • Write window functions (ROW_NUMBER, RANK, DENSE_RANK)
  • Build CTE-based reporting queries
  • Implement ROLLUP for multi-level aggregation
Project 2: E-Commerce Platform
📚 Modules 3-5
Develop product catalog with full-text search, flexible JSONB attributes, and optimized queries with strategic indexing.
  • Create GIN indexes for full-text search
  • Store product variants as JSONB
  • Query product attributes with operators (@>, ?)
  • Optimize with EXPLAIN ANALYZE
Project 3: Multi-Tenant SaaS
📚 Modules 6-7
Scale multi-tenant application with table partitioning, row-level security, and automated replication for high availability.
  • Implement hash partitioning by tenant_id
  • Enable row-level security for isolation
  • Set up streaming replication
  • Automate partition management

📚 Resources & Tools

Official Docs
PostgreSQL official documentation with complete API reference and guides.
→ postgresql.org/docs
Neon PostgreSQL
Cloud-hosted PostgreSQL with tutorials and guides for modern development.
→ neon.com
Roadmap.sh Database
Interactive learning roadmap covering databases and PostgreSQL DBA skills.
→ roadmap.sh
pgAdmin
Web-based PostgreSQL management and query development interface.
→ pgadmin.org
DBeaver
Advanced database client with visualizations and query tools.
→ dbeaver.io
PgBench
Performance testing tool for benchmarking PostgreSQL databases.
→ pgbench