DB2 从多个用户的数据库中撤销用户权限

Question

我想撤销所有用户的所有权限，只有一个来自数据库。 DB2 10.5 LUW

我的思路是：

 db2 "revoke all on database from user IN (select grantee from syscat.dbauth where grantee not IN 'SAFEUSER')"

但我无法让它工作。

有什么想法吗？

Answer 1

REVOKE (database authorities) statement 中没有 ALL 子句。
您可以生成以下 select 语句所需的语句集：

select 
  'REVOKE '
|| SUBSTR 
(
  CASE ACCESSCTRLAUTH WHEN 'N' THEN '' ELSE ', ACCESSCTRL' END 
||CASE BINDADDAUTH WHEN 'N' THEN '' ELSE ', BINDADD' END 
||CASE CONNECTAUTH WHEN 'N' THEN '' ELSE ', CONNECT' END 
--- add here expressions with all other *AUTH columns
, 2)
||' ON DATABASE FROM ' 
|| CASE 
     WHEN GRANTEE = 'PUBLIC' THEN ''
     WHEN GRANTEETYPE = 'U' THEN 'USER' 
     WHEN GRANTEETYPE = 'G' THEN 'GROUP' 
     WHEN GRANTEETYPE = 'R' THEN 'ROLE' 
   END
||' '||GRANTEE
from syscat.dbauth
WHERE 'Y' IN 
(
ACCESSCTRLAUTH, BINDADDAUTH, CONNECTAUTH
--- add here all other *AUTH columns separated by ','
)
AND  grantee <> 'SAFEUSER'
;