SQL Joins & Aggregations

What you’ll learn

Most analytics work involves joining tables and rolling numbers up. This course focuses on those patterns so that your queries can support dashboards, weekly reports, and ad-hoc analysis.

Use INNER, LEFT, and RIGHT JOINs to combine tables safely.
Group data and compute aggregates like counts, sums, and averages.
Write queries that match how metrics are defined in real organisations.
Debug join issues such as duplicated rows and unexpected totals.

Who this is for

Ideal if you can already write basic SELECT queries and want to move towards analysis-ready SQL.

Enrolment & access

During the early access phase, courses will open gradually while the cloud RStudio environment is finalised. You’ll be able to sign up, log in, and launch your workspace directly from this page.

Coming soon Cloud RStudio access Standalone course

Once live, this button will take you to a secure sign-up and payment flow, then straight into your Quantyl learning workspace.