Creating Spatial Feature Classes Based on Proximity, Overlay, and Attributes - Introducing Geographic Information Systems with ArcGIS - page 432

FIGURE 7-17 Gold Buffers

Here are some salient facts:

The values in the field SOILS_ID (in soil_type) correspond to the values in SOILS_ID (in the
Soils feature class). Each is a key field in its table.

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A key field contains, for each record, a unique value that identifies that record.

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A given value in the SOILS_ID field in the soil_type table refers to a polygon with the same
number in the SOILS_ID in the attribute table.

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When a table B is joined to a table A, the records of table B are concatenated with the
records of table A based on the identical values in the key fields.

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Joining the soil_type table to the Soils feature class table, using the keys, will result in
associating the correct polygon with its CHARACTERISTIC (“sand,” “rock,” and so on).

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The values in CHARACTERISTIC are the soil types you will need to identify the sandy soils.

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Putting the table together with the feature class is a bit convoluted, so you may want to be especially
detailed in your Fast Facts File.

14. With the List By Drawing Order tab active in the T/C, right-click the Soils entry. Under Joins And
Relates, pick Join. In the Join Data window, you want to select Join attributes from a table.