Spatial Database Fundamentals with PostGIS and PostgreSQL

Location data is everywhere, but querying coordinates efficiently requires specialized database tools. Standard database queries fall short when calculating real-world distances, boundaries, and proximities. This written course transforms your SQL skills, teaching you how to model, index, and analyze geographic data inside a database using the powerful PostGIS extension. You will start with key spatial terminology, coordinate reference systems, and geometry types before moving on to practical querying. Through clear written explanations and structured SQL examples, you will learn to solve complex geographic problems. What you will learn: Understand foundational spatial concepts, including the differences between geometry and geography types; Write spatial queries using key PostGIS functions to measure distance, determine containment, and find intersections; Optimize query performance using spatial indexing techniques like GiST indexes; Work with modern spatial data formats, including GeoJSON integration and JSONB workflows; Analyze geographic datasets to solve proximity and routing problems. The course begins with core definitions and spatial theory before guiding you through practical querying patterns and performance optimization techniques. This course is designed for database beginners, GIS enthusiasts, and web developers with basic SQL knowledge who want to expand into spatial analysis. Start querying spatial data effectively today.