View system tables relevant to USER Accounts
View all users
User accounts are added to the SYS.Users table.
SELECT * FROM SYS.USERS
View All Permissions
Users granted Cirro permissions are listed as grantee in SYS.PERMISSIONS.
SELECT * FROM SYS.SYSPERMISSIONS
View All Roles
Users granted Cirro Roles are listed as grantee in SYS.SYSROLES.
SELECT * FROM SYS.SYSROLES
View currently logged-in users
The USER_SESSIONS table lists all current connections.
SELECT * FROM SYS.USER_SESSIONS