5 Database Utilities
A database context must be defined before managing database groups. The DBPRIV privilege is required to maintain database groups.
REVOKE {"group" [,"group" ...]}
FROM {PUBLIC | "user" [,"user" ...]} ;
The REVOKE statement is used to disassociate the specified users from the given groups.
When PUBLIC is specified instead of a user list, the statement applies to all users.
For example:
GRANT "users" TO "mike",marc";This will make the users mike and marc members of the group "users".