About This Learning Path

SQL Fundamentals guides you from core database concepts to confident, production‑grade analysis. You begin by understanding how relational databases are structured, why normalization matters, and how to retrieve data with clear, efficient queries. Next, you’ll progress to selecting and filtering with predicates and subqueries, then master joins that combine data across tables without losing fidelity. You will aggregate at the right level of granularity, filter with HAVING, and apply window functions for running totals and ranked views that support deeper analysis. From there, you’ll manipulate dates, strings, and data types for cleaner pipelines, handle nulls safely with COALESCE and NULLIF, and produce outputs that downstream tools can trust. Finance-focused lessons round out your toolkit with time series reporting, quarter-on-quarter comparisons, moving averages, and ROLLUP summaries to support stakeholder reporting. A practical project consolidates skills by organizing a charity’s financial records and delivering robust, future-ready SQL processes. Throughout, Kubicle’s applied learning model emphasizes hands-on practice and business context so you can translate queries into measurable impact in analytics, finance, operations, or consulting.