The Complete Course of PostGIS 2025

Install and configure PostGIS by downloading PostgreSQL, running the installer, using Stack Builder to add PostGIS, and verifying with PgAdmin by registering a server and enabling the extension.

Create a spatial database and a spatial table in PostGIS using pgadmin, register a server, enable the PostGIS extension, and define a geometry column with srid 4326 (WGS 84).

Master basic spatial queries in PostGIS with SQL, selecting data from tables, filtering by conditions, and analyzing distances, overlaps, and other geometry relationships among points, lines, and polygons.

Explore practical spatial queries in PostGIS using pgAdmin, performing data definition, manipulation, and control tasks, creating, altering, and dropping tables, inserting and updating data, and managing privileges.

Explore spatial queries in PostGIS, mastering predicates such as contains, intersects, and within, and use intersection, union, and buffer with aggregate functions like count and sum.

Load sql scripts in PgAdmin to create and populate a buildings table with columns like building_id, short_name, long_name, and building_area, then query the 44 rows to explore the data.

Explore sql queries on buildings data in PostGIS, filtering by facility key, sorting by area, and using where, group by, having, like, count, sum, avg, round, and coalesce.

Master spatial joins, overlays, buffering, and proximity analysis in PostGIS through practical SQL examples. Use ST_Within, ST_Intersects, ST_Buffer, and centroid distance queries to analyze geographic relationships.

Discover spatial aggregation and clustering in PostGIS, including aggregating households into census tracts and applying DBSCAN and K-means clustering to crime and tree data.

Test your PostGIS knowledge with questions on spatial join, overlay analysis, and buffers. Explore proximity analysis and clustering to identify spatial patterns.

Explore 3D geometries in PostGIS, performing 3D intersections, unions, distances, and buffers, and creating 3D points, lines, centroids, and convex hulls, while joining with polygons to find the nearest polygon.

Learn raster data handling in postgis, including rasterization, algebra, overlay, reclassification, slope calculation, resampling, and pixel value extraction.

Explore network analysis and routing in PostGIS using the PG routing extension to model road networks, compute shortest paths, and analyze points of interest and service areas.

Explore PostGIS fundamentals through MCQ and practical drills on 3d geometries, network analysis and routing, and raster data handling to build hands-on spatial querying skills.

Master practical PostGIS workflows for 3d geometry, network routing, and raster data by solving nearest polygons, 3d length calculations, nearest hospitals, park routes, and pixel polygon generation.

Explore spatial indexing in PostGIS and learn how using gist indexes and spatial predicates speeds queries, optimizes nearest neighbor searches, and improves spatial joins and bounding box searches.

Create cities with id, name, geom; populate it, build a spatial index on geom, then create and populate countries and perform a spatial join on intersections using the index.

Build cities and countries tables, index the geom column with a gist index, and perform a spatial join using intersects to demonstrate PostGIS spatial indexing and optimization.

Learn to connect PostGIS with QGIS by configuring a PostgreSQL database, creating a new connection, and adding PostGIS layers to visualize spatial data.

Explore interoperability between PostGIS and QGIS by importing a shapefile into PostgreSQL and exporting a PostGIS table for use in QGIS, preserving geometry.

Learn to build web mapping applications by integrating PostGIS with GeoServer, publish PostGIS layers as web map services, and visualize them with OpenLayers.

practice mcqs on spatial indexing and optimization in postgis, including generalized search tree, pg_indexes, and the && operator for geometry intersections.

Integrate postgis data into a web app using html, css, and javascript to render a choropleth map of US population density with geojson, and interact with markers, search, and layers.

Master PostGIS spatial databases for geospatial analysis, implement and manage them, optimize queries for efficient spatial data handling, and apply skills through practical projects.