方法
In ArcGIS Pro, the Add Relate tool is used to relate attributes from one layer to another layer or table based on a field value. The cardinality of the relationship between the input table and the relate table can be specified into either a one-to-one relationship, a one-to-many relationship, or a many-to-many relationship. The relate is based on a common field that is found in both the tables.
This article describes how to relate the type of water body from the input table of the lakes and marshes feature class to the predominant sediment type in the relate table based on the description (DESCRIPTIO) field found in both tables.
The description (DESCRIPTIO) field in the input table is used as the input relate field as shown in the image below.
The DESCRIPTIO field of the imported relate table is the common field. This is used as the output relate field highlighted in the image below.
Note: Alternatively, right-click the layer on the Contents pane and navigate to Joins and Relates. Click Add Relate.
Hover over the input relate field in the attribute table to view the relate information in the field description, as shown in the image below.
Note: Relates made from an Excel spreadsheet to a feature class using the Add Relate tool outputs a temporary relate. To make the relate permanent, use the Create Relationship Class tool. Refer to ArcGIS Pro: Create Relationship Class for more information.
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