This repository contains my personal SQL notes, organized topic-wise. Each topic is stored in a separate file so you can read or contribute notes for individual SQL areas (for example, DDL, DML, Joins ...

┌─────────────────┐ │ Data Sources │ (CRM, ERP Systems) └────────┬────────┘ │ ┌─────────────────┐ │ Bronze Layer │ Raw, unprocessed data │ (bronze.*) │ - Exact copy of source ...