How can I query the list of database roles in a SQL Server 2000 database?

Question

In Sql Server 2000, is it possible to return, via SQL query, a complete list of database roles that exist in a given database?

I know it is possible to see these roles by expanding the Security, Roles, and Database Roles nodes in SQL Server Management Studio, but I'd like to get them through a query that I can parse programmatically.

To clarify, I'm not looking for a list of users with their roles, but just the list of roles themselves.

Solution 1

Every database in SQL Server 2000 has a sysusers system table

Probably something like

Use <MyDatabase>

Select 
  [name]
From
  sysusers
Where
  issqlrole = 1

will do the trick

Solution 2

With our SQL Server 2016 this works for me

Use Sandbox
Select
  name, principal_id
From
  sys.database_principals 
Where
  type = 'R' and principal < 16384

where Sandbox is the name of my database. (I'm using SQL with ESRI ArcGIS Enterprise 10.6.)