Database Development & Administration : Stored Procedure, Functions, Triggers, Views, Query Optimization, Indexing (B-Tree, GIN, GiST, BRIN), Performance Tuning, Database Design, Backup & Restore, Transaction Handling, Replication, Partitioning, Security & Role Management, Materialized Views, JSON/JSONB, Full-Text Search, CTE, Window Functions, Monitoring & Troubleshooting, High Availability.
Advanced Features : JSONB, Array Data Type, Recursive Queries, Row Level Security (RLS), Foreign Data Wrapper (FDW), PostGIS, Parallel Query, Declarative Partitioning.
Data Integration / ETL : ETL Process, Data Import & Export, Bulk Insert (COPY), Data Synchronization, Database Migration, Data Warehousing.
Application / API : PostgreSQL with ASP.NET Web API, Entity Framework Core, Dapper ORM, ADO.NET, PHP PDO, Laravel Eloquent ORM, Slim Framework, Node.js (pg), REST API Integration, Database First / Code First.