Question

我正在使用以下T-SQL从我的SQL Server 2008 R2数据库中获取角色成员：

select rp.name as database_role, mp.name as database_user
from sys.database_role_members drm
  join sys.database_principals rp on (drm.role_principal_id = rp.principal_id)
  join sys.database_principals mp on (drm.member_principal_id = mp.principal_id)
order by rp.name

当我检查输出时，我注意到为db_datareader列出的唯一角色成员是db角色 - 查询中没有列出db_datareader的用户成员。

为什么？我怎样才能列出我的数据库角色的用户成员？

我想我还应该问一下表sys.database_role_members是否实际上包含角色的所有成员？

Answer 1

我已经知道发生了什么。

当我查询角色成员时，我将输出与角色属性对话框中列为角色成员的SSMS进行比较 - 这包括用户和角色，但查询中没有列出用户列出的用户我的问题。我发现在列出角色成员时，SSMS会扩展角色成员以显示这些角色的成员。

以下查询复制了SSMS列出角色成员的方式：

WITH RoleMembers (member_principal_id, role_principal_id) 
AS 
(
  SELECT 
   rm1.member_principal_id, 
   rm1.role_principal_id
  FROM sys.database_role_members rm1 (NOLOCK)
   UNION ALL
  SELECT 
   d.member_principal_id, 
   rm.role_principal_id
  FROM sys.database_role_members rm (NOLOCK)
   INNER JOIN RoleMembers AS d 
   ON rm.member_principal_id = d.role_principal_id
)
select distinct rp.name as database_role, mp.name as database_userl
from RoleMembers drm
  join sys.database_principals rp on (drm.role_principal_id = rp.principal_id)
  join sys.database_principals mp on (drm.member_principal_id = mp.principal_id)
order by rp.name

上述查询使用递归CTE将角色扩展到其用户成员中。

Answer 2

这是另一种方式

SELECT dp.name , us.name  
FROM sys.sysusers us right 
JOIN  sys.database_role_members rm ON us.uid = rm.member_principal_id
JOIN sys.database_principals dp ON rm.role_principal_id =  dp.principal_id

Answer 3

试试这个

;with ServerPermsAndRoles as
(
    select
        spr.name as principal_name,
        spr.type_desc as principal_type,
        spm.permission_name collate SQL_Latin1_General_CP1_CI_AS as security_entity,
        'permission' as security_type,
        spm.state_desc
    from sys.server_principals spr
    inner join sys.server_permissions spm
    on spr.principal_id = spm.grantee_principal_id
    where spr.type in ('s', 'u')

    union all

    select
        sp.name as principal_name,
        sp.type_desc as principal_type,
        spr.name as security_entity,
        'role membership' as security_type,
        null as state_desc
    from sys.server_principals sp
    inner join sys.server_role_members srm
    on sp.principal_id = srm.member_principal_id
    inner join sys.server_principals spr
    on srm.role_principal_id = spr.principal_id
    where sp.type in ('s', 'u')
)
select *
from ServerPermsAndRoles
order by principal_name

<强>（OR）

SELECT p.name, o.name, d.*
FROM sys.database_principals AS p
JOIN sys.database_permissions AS d ON d.grantee_principal_id = p.principal_id
JOIN sys.objects AS o ON o.object_id = d.major_id

如何在SQL Server 2008 R2中列出角色成员

3 个答案: