
admin.groupGetSecurityDatabase( config as element(configuration), group-id as (Number|String) ) as (Number|String)
This function returns the ID of the security database for the specified group from the configuration.
http://marklogic.com/xdmp/privileges/admin/group
http://marklogic.com/xdmp/privileges/admin/group/{id}
  
  const admin = require('/MarkLogic/admin.xqy');
  const config = admin.getConfiguration()
  const groupid = admin.groupGetId(config, "Default")
  admin.groupGetSecurityDatabase(config, groupid)
   //returns the ID of the security database