権限のリストを取得するクエリです。
SELECT
--*,
user_name(grantee_principal_id) AS ユーザー名,
class_desc AS オブジェクトクラス,
case
when class_desc='SCHEMA' THEN (select name from sys.schemas where schema_id=major_id)
else object_name(major_id)
end AS オブジェクト,
permission_name
FROM
sys.database_permissions
ORDER BY
grantee_principal_id,
class,
major_id
参考 → docs.microsoft.com