SQL Project - Data Technician Bootcamp

Overview

SQL is the foundation of my data analysis work. I use SQL to extract, clean, and analyse data from relational databases to support dashboards and business insights. 

Core Skills

• Query Writing — SELECT, WHERE, ORDER BY, GROUP BY, HAVING

• Joins — INNER, LEFT, RIGHT, FULL

• Aggregations — SUM, AVG, COUNT, MIN, MAX

• Data Cleaning — filtering, deduplication, formatting

• Views & Subqueries — reusable logic for reporting

• Performance — indexing basics, optimised queries

• Database Tools — Azure SQL, PostgreSQL, MySQL,