CartoDB

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Join tables

hard

Join data from two different tables through a single query and display the results on a map. This map displays the results of a fairly advanced OUTER JOIN query that allows us to style Mexico's protected areas based on whether they contain (darker orange with black borders) GBIF reported observances of the Monarch butterfly versus whether the do not (light mostly transparent polygons).

Related resources: CartoDB.js, Join Two Tables.

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Further info? Take a look a the docs

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CartoDB is also used by

  • Harvard
  • UNEP-WCMC
  • NASA
  • Convention on Biological Diversity
  • Wall Street Journal
  • WORLD RESOURCES INSTITUTE
  • Common questions

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