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What is the difference between Postgres and PostGIS?

What is the difference between Postgres and PostGIS?

PostGIS is an open source, freely available spatial database extender for the PostgreSQL Database Management System (a.k.a DBMS). So PostgreSQL (a.k.a. Postgres) is THE database and PostGIS is like an add-on to that database. The latest release version of PostGIS now comes packaged with PostgreSQL.

Who developed PostGIS?

Refractions Research Inc
Introduction. PostGIS is developed by Refractions Research Inc, as a spatial database technology research project. Refractions is a GIS and database consulting company in Victoria, British Columbia, Canada, specializing in data integration and custom software development.

Which company uses PostgreSQL?

Of course, there are many other companies that use PostgreSQL, including Groupon (provides discounts on various products and services), Revolt (financial services), Trivago (one of the world’s largest hotel search engines), and Accenture (global professional services leader).

Do big companies use PostgreSQL?

5869 companies reportedly use PostgreSQL in their tech stacks, including Uber, Netflix, and Instagram.

How does the 3D city database work?

The 3D City Database is shipped as a collection of SQL scripts which allow for creating and dropping instances of the 3D City Database on top of an Oracle Spatial or PostgreSQL/PostGIS DBMS. Project files for database schema modelling software are provided as well (Oracle: JDeveloper, PostgreSQL: pgModeler).

Is the 3dcitydb available as Docker images?

The 3DCityDB is also available as Docker images. Find out more. The 3D City Database is a free 3D geo database solution to store, represent, and manage virtual 3D city models on top of the spatial relational database systems Oracle Spatial/Locator or PostgreSQL with PostGIS.

Is the 3D city software open source?

Our software is open source and released under the terms of Apache. The package below contains the SQL scripts needed to create an instance of the 3D City Database on either Oracle Spatial / Locator or PostgreSQL/PostGIS. Note that the scripts are also included in the main Installer package available from the Download page.

Can I use OGC CityGML for learning about 3dcitydb?

It is, however, allowed to use this hands-on tutorial for learning about 3DCityDB within commercial companies or projects. OGC CityGML is an open data model and XML-based format for the storage and exchange of semantic 3D city models.