Question

我正在使用System Center数据来处理更新合规性报告。我有我想要的查询，但我无法删除失败更新或我的必需/已部署更新的计数为0的行。

我玩过HAVING，但只能让它返回NULL，但仍然不能排除它们。

select distinct
rs.name0 as 'Computer Name',
rs.description0 AS 'Description',
os.Caption0 as 'Operating System',
case 
      when CS.ClientActiveStatus='1' then 'Active' 
      when CS.ClientActiveStatus='0' then 'Inactive'
end
      as 'Client Active Status',

--Last Hardware Scan
convert(varchar(26), ws.lasthwscan, 100) as 'Last Hardware Scan',

--Last Software Scan (Convert to EST)
convert(varchar(26), (dateadd(hour, -4, uss.LastScanTime)), 100) as 'Last Software Scan',

--Required/Deployed Updates
(select count(ucs.ResourceID)
from v_Update_ComplianceStatus ucs
    join v_updateinfo ui on ui.ci_id=ucs.ci_id
    join V_CITargetedMachines ctm on ctm.ci_id=ucs.ci_id and ctm.ResourceID = ucs.ResourceID
where ucs.resourceid=rs.ResourceID and ucs.Status='2' and ui.LocaleID='9' and ui.IsDeployed='1' and ui.IsSuperseded='0'
) as 'Required/Deployed Updates',

--Failed Updates
(select count(ucs.ResourceID)
from v_UpdateComplianceStatus ucs
    join v_UpdateInfo ui on ucs.ci_id=ui.ci_id and ucs.Status='2'  and ui.LocaleID='9' and ui.IsDeployed='1' and ui.IsSuperseded='0' and ucs.LastEnforcementMessageID In (6,11,14)
    join v_StateNames sn on ucs.LastEnforcementMessageID = sn.StateID and sn.TopicType=402
where ucs.resourceid=rs.ResourceID
) as 'Failed Updates',

--Reboot Check
(select iif(sum(iif(ucs.LastEnforcementMessageID='9',1,0)) > 0,'Yes','No')
from v_UpdateComplianceStatus ucs
where ucs.resourceid=rs.ResourceID
) as 'Reboot Required'

from v_R_System rs
    join v_GS_OPERATING_SYSTEM os on rs.ResourceID=os.ResourceID
    join v_FullCollectionMembership fcm on rs.ResourceID=fcm.ResourceID
    join v_Collection col on fcm.CollectionID=col.CollectionID
    Join v_CH_ClientSummary CS on rs.ResourceId=CS.ResourceID
    join v_GS_WORKSTATION_STATUS ws on rs.ResourceID=ws.ResourceID
    join v_UpdateScanStatus uss on rs.ResourceID=uss.ResourceID

where 'Required/Deployed Updates' > '0' and 'Failed Updates' > '0'
order by rs.Name0 asc

我希望排除“必需/已部署的更新”或“失败的更新”计数为0。

当前正在获取

Computer Name | Description | Operating System | Client Active Status | Last Hardware Scan | Last Software Scan | Required/Deployed Updates | Failed Updates | Reboot Required
WKS1 | Test Laptop 1 | Microsoft Windows 10 Enterprise | Active | Apr 5 2019 12:00PM | Apr 5 2019 12:00PM | 0 | 0 | No
WKS2 | Test Laptop 2 | Microsoft Windows 10 Enterprise | Active | Apr 2 2019 12:46PM | Apr 5 2019 12:02PM | 0 | 0 | Yes
WKS3 | Test Laptop 3 | Microsoft Windows 10 Enterprise | Active | Apr 2 2019 12:46PM | Apr 5 2019 12:02PM | 1 | 1 | Yes

想获得

Computer Name | Description | Operating System | Client Active Status | Last Hardware Scan | Last Software Scan | Required/Deployed Updates | Failed Updates | Reboot Required
WKS3 | Test Laptop 3 | Microsoft Windows 10 Enterprise | Active | Apr 2 2019 12:46PM | Apr 5 2019 12:02PM | 1 | 1 | Yes

任何帮助将不胜感激。

Answer 1

您不能在WHERE子句中使用别名。

您可以将另一个SELECT包裹起来，并在其中的别名表达式上应用条件。

SELECT ...
       FROM (SELECT ...,
                    (SELECT count(...)
                            FROM v_update_compliancestatus ucs
                            ...) "Required/Deployed Updates"
                    (SELECT count(...)
                            FROM v_update_compliancestatus ucs
                            ...) "Failed Updates",
                    FROM ...
                    WHERE ...) x
       WHERE "Required/Deployed Updates" > 0
             AND "Failed Updates" > 0;

或者，您可以简单地重复该表达式，以子选择为例。

SELECT ...
      (SELECT count(...)
              FROM v_update_compliancestatus ucs
              ...) "Required/Deployed Updates",
      (SELECT count(...)
              FROM v_update_compliancestatus ucs
              ...) "Failed Updates"
      ...
      FROM ...
      WHERE ...
            AND (SELECT count(...)
                        FROM v_update_compliancestatus ucs
                        ...) > 0
            AND (SELECT count(...)
                        FROM v_update_compliancestatus ucs
                        ...) > 0
      ...

在您的情况下，由于要检查表的行数不为零，即如果存在一行，则还可以在EXISTS子句中使用WHERE，这可能会加快速度。

SELECT ...
      (SELECT count(...)
              FROM v_update_compliancestatus ucs
              ...) "Required/Deployed Updates",
      (SELECT count(...)
              FROM v_update_compliancestatus ucs
              ...) "Failed Updates"
      ...
      FROM ...
      WHERE ...
            AND EXISTS (SELECT *
                               FROM v_update_compliancestatus ucs
                               ...)
            AND EXISTS (SELECT *
                               FROM 
                               v_update_compliancestatus ucs)
      ...

还要注意，您不需要将数字文字用单引号（'换行。也不要将别名用单引号换行，如果需要，可以使用双引号（"）。或需要引用别名。在SQL Server中，您还可以使用[alias]中的方括号。

如何排除SQL子查询的计数返回0的行

1 个答案: