There is one row in the SYSGROUP system view for each member of each group. This view describes the many-to-many relationship between groups and members. A group may have many members, and a user may be a member of many groups. The underlying system table for this view is ISYSGROUP.
The SYSGROUP view is a SQL Anywhere system view. See "SYSGROUP system view" in SQL Anywhere Server – SQL Reference.
