Wiki du Master Géographies Numériques

Cette page est en lecture seule. Vous pouvez afficher le texte source, mais ne pourrez pas le modifier. Contactez votre administrateur si vous pensez qu'il s'agit d'une erreur.

====== Join (Based on Attribute) ======

A join based on attribute permits, as its name suggests, joining two attribute tables that describe entities sharing a common field. The operation produces a single table juxtaposing the table fields to join those of the original table. In a Geographical Information System the original table is often associated with entities located in a geographical layer, allowing for example to map data from a statistical table that has no spatial dimension. Joints attributes are used when one wishes to introduce new information in a geographic layer, for example data describing the businesses that you want to join to a layer of municipalities.
\\ {{ :glossaire:jointureattributaire.jpg?direct&300 |}}
\\ See also: [[english:glossary:database|Database]]
\\ [[glossaire:jointure_attributaire|[French: Jointure attributaire]]]