Supabase Database Functions Guide — Serverless Logic with RPC and PL/pgSQL

Supabase Database Functions Guide — Serverless Logic with RPC and PL/pgSQL Supabase Database Functions let you move complex business logic into PostgreSQL and call it from Flutter via rpc() — no Edge Function deployment needed. Why Use Database Functions Atomicity : Multi-table updates in a single transaction Performance : Fewer network round-trips, lower latency Security : Encapsulate logic without bypassing RLS Simplicity : Skip Deno deployment entirely Basic Function CREATE OR REPLACE FUNCTIO