Organizing groups and users
In Chapter 2, Developing Custom Applications, the User table was extended to create the home for the Guest records. It is generally a good idea to keep all your users in the User [sys_user] table, since it lets you use things such as notifications and Connect easily and effectively.
To organize users, put them into groups. Groups and users have a many-to-many relationship. One person can be a member of many groups, and a group can have many members.
Tip
Groups are stored in the sys_user_group table. The relationship between groups is stored in the Group Members[sys_user_grmember] table.
Groups are also hierarchical. A group has a reference field pointing to the group table, letting you build up a parent-child structure. ...
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