#ARCGIS 10.3 MAKE JOIN PERMANANT DOWNLOAD#

Suppose you have obtained data that describes the percentage change in population by county and you want to generate some population growth maps based on this information. You can perform a join with either the Join Data dialog box, accessed by right-clicking a layer in ArcMap, or the Add Join tool. The name of the field does not have to be the same, but the data type has to be the same you join numbers to numbers, strings to strings, and so on. Typically, you'll join a table of data to a layer based on the value of a field that can be found in both tables.

Relating tables defines a relationship between two tables-also based on a common field-but doesn't append the attributes of one to the other instead, you can access the related data when necessary. When you join two tables, you append the attributes from one onto the other based on a field common to both. For example, you could associate a table of parcel ownership information with the parcels layer, since they share a parcel ID field. You can make these associations in several ways, including by joining or relating tables temporarily in your map or by creating relationship classes in your geodatabase that maintain more permanent associations. If this information is stored in a table, such as a dBASE, INFO, or geodatabase table, you can associate it with your geographic features and display the data on your map.ДЄrcGIS allows you to associate records in one table with records in another table through a common field, known as a key.

#ARCGIS 10.3 MAKE JOIN PERMANANT DOWNLOAD#

When you need information that isn't in the current table, you can link the two tables together.ДЇor example, you might obtain data from other departments in your organization, purchase commercially available data, or download data from the Internet. Having multiple tables prevents duplicating information in the database, because you store the information only once in one table. Most database design guidelines promote organizing your database into multiple tables-each focused on a specific topic-instead of one large table containing all the necessary fields.

Using joins, relates, and relationship classes together.

Relationship classes in the geodatabase.

Arcgis 10.3 make join permanant