The maximum number of logins to the server and users to the database was increased in Adaptive Server version 12.5:
Number of logins – 2 billion plus 32K
Number of database users – 2 billion less 1032193
Number of groups in a database – 1032193
Because of these changes:
You can use negative values for user IDs (uid)
The server user ID (suid) associated with a group or a role in sysusers is no longer equal to the negation of their uid. In Adaptive Server version 12.0, every suid associated with a group or a role in sysusers is set to -2(INVALID_SUID).
See What’s New in Adaptive Server Enterprise? for ID ranges.
