Spatial join
This tool transfers attribute table field values from a source layer to a target layer, in a manner similar to an SQL join operation but using a spatial criterion (intersection or proximity).
If intersection is chosen as the transfer criterion, each feature of the target layer can intersect many features of the source layer (1:n spatial relationship).
If proximity (nearest neighbour) is selected, then a 1:1 relationship will be established.
The user can select different methods (mean, minimum, maximum, sum) for resolving 1:n relationships between numeric attribute table fields.