Source: http://www.gisall.com /? Uid-153242-action-viewspace-itemid-5719
First you can refer to this blog: http://jaasyang.blog.163.com/blog/static/2662632201031883417207/
Next, let's write my own experiences:
Join: The main function is to create a combination of two tables, add another table to the existing table, and transfer the table from the spatial location, which can achieve a lot of calculations. For the opposite layer, you can obtain information through vertex, but you can directly obtain the information of the first vertex created. For a vertex, you can obtain the distance from the nearest line.
Relate: Unlike join, relate only establishes a connection, but it is not displayed. If you want to confirm, you can select and use option \ relate tables to select an associated table, therefore, it is best to connect tables in the same workspace.
Related posts: http://bbs.esrichina-bj.cn/ESRI/viewthread.php? Tid = 53131 & pid = 916544 & page = 2 & extra = # pid916544