The SAP ASE setup process defines various user roles.
Operating system administrator – the individual who maintains the operating system. This individual has administrator privileges.
System administrator – the individual in charge of SAP ASE system administration, creating user accounts, assigning permissions on databases, and creating new databases. At installation, the system administrator’s login name is “sa”. The “sa” login is specific to SAP ASE and is used to log in to SAP ASE using the isql command.