Friday, 24 April 2015

Joining attribute data from related tables using QGIS

Our post today will show you how to join the attributes from one table to the attribute table  of a layer on a map using QGIS. To create a join of both tables, an identical field must exist between them, in other words, a relationship must exist between them.

Tables are a very important form of storage in GIS. Attribute (that is descriptive) data on a spatial object are usually kept in tabular form.
Below is our table containing data from the results of a building survey done on these points in the Ibadan municipality. the table is stored in comma seperated values .csv format.


Secondly, let us look below at a registered image of Ibadan municipality where we can clearly see our points (red dots) stored as a layer. All these other attribute data of these points on the table above will need to be joined to the shape file on the map.















Click on the link  Joining tables and follow the steps.

Hope you are practicing already. Feel free to send us your feedback.

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