Question

我正在尝试将来自count语句的结果与来自其他条件（多个表）的结果相结合，并且正在敲打我的脑袋。我在这方面的技能不强，达到这一点很有意思。这个阶段的最后一个问题是，虽然我看到了我正在寻找的结果，但我的UNION ALL并没有合并数据。
您可以在底部表（结果）中看到，我正在获得同一系统的多个实例。我意识到我两次调用相同的数量，并且它可能正确地试图向我显示这两个数字，但我所有改变这些的努力都让我遇到了其他问题。
最后，我还想在其他表格中添加至少两个以上的计数，但希望一旦过去就不会那么具有挑战性。（我也试图获取计数不适用的“systemid”数据，我只希望它返回那些与计数为一或多的计数特别相关的项目。我已复制下面的示例表和代码。
任何帮助将不胜感激！
戴夫

表1：系统

+-----+-----------+-----------+----------------+  
| sid |   Name    | checkdate | MissingPatches |  
+-----+-----------+-----------+----------------+  
|  52 | WCLDC     |  20130623 |              2 |  
|  79 | WCLVS001  |         0 |              0 |  
| 112 | TAR201    |         0 |              3 |  
| 179 | DOX109N   |  20130603 |              0 |  
| 181 | DOX122T   |  20130520 |              0 |  
| 184 | DOX121T   |  20130411 |              0 |  
| 248 | ROW1767L  |  20130530 |              2 |  
| 251 | ROW1765L  |  20130528 |              1 |  
| 268 | GWR-LAP16 |  20130531 |              3 |  
| 278 | ROW1522L  |  20130420 |              1 |  
| 281 | ROW255L   |  20130509 |              1 |  
| 283 | GWR-LAP03 |  20130413 |              2 |  
| 313 | GMSRT     |  20130623 |              1 |  
| 334 | ROW1517L  |  20130523 |              1 |  
| 335 | ROW1792L  |         0 |              0 |  
| 339 | TEXCE-PC  |         0 |              0 |  
+-----+-----------+-----------+----------------+

表2：补丁

╔═════╦══════════╦══════════╦═══════════╗ ║sid║PatchID║已批准║已安装║ ╠═════╬══════════╬══════════╬═══════════╣ ║52║a34236║1║0║ ║52║b54656║1║0║ ║112║ds6456║1║0║ ║112║se4168║1║0║ ║112║f46466║1║0║ ║248║t44541║1║0║ ║248║uyt446║1║0║ ║251║gfd841║1║0║ ║268║54dtyd║1║0║ ║268║dg4495║1║0║ ║268║dg4444║1║0║ ║278║jhr652║1║0║ ║281║h46831║1║0║ ║283║54fghf║1║0║ ║283║46fhtj║1║0║ ║313║s44971║1║0║ ║334║et4796║1║0║ ║339║TEXCE-PC║0║0║ ╚═════╩══════════╩══════════╩═══════════╝

CODE：

SELECT
  systems.sid, systems.Name, systems.checkdate,
  SUM(0) as MissingPatches
FROM (
  patches LEFT JOIN Systems
  ON Systems.Sid = patches.Sid
)
WHERE (
  STR_TO_DATE(systems.checkdate, '%Y%m%d') < CURDATE() - INTERVAL 14 DAY
)
GROUP BY SYSTEMS.Sid 

UNION ALL

SELECT
  systems.sid, systems.Name, systems.checkdate,
  count(approved) as MissingPatches
FROM (
  patches LEFT JOIN Systems
  ON Systems.Sid = patches.Sid
)
WHERE patches.Approved = 1
  AND patches.Installed = 0
  AND Patches.Sid = systems.Sid
GROUP BY patches.Sid
HAVING COUNT(approved) > 0
ORDER BY Sid

结果：

+-----+-----------+-----------+----------------+  
| sid |   Name    | checkdate | MissingPatches |  
+-----+-----------+-----------+----------------+  
|  79 | WCLVS001  |         0 |              0 |   
| 112 | TAR201    |         0 |              0 |  
| 112 | TAR201    |         0 |              3 |  
| 179 | DOX109N   |  20130603 |              0 |  
| 181 | DOX122T   |  20130520 |              0 |  
| 184 | DOX121T   |  20130411 |              0 |  
| 248 | ROW1767L  |  20130530 |              0 |  
| 248 | ROW1767L  |  20130530 |              2 |  
| 251 | ROW1765L  |  20130528 |              0 |  
| 251 | ROW1765L  |  20130528 |              1 |  
| 268 | GWR-LAP16 |  20130531 |              0 |  
| 268 | GWR-LAP16 |  20130531 |              3 |  
| 278 | ROW1522L  |  20130420 |              0 |  
| 278 | ROW1522L  |  20130420 |              1 |  
| 281 | ROW255L   |  20130509 |              0 |  
| 281 | ROW255L   |  20130509 |              1 |  
| 283 | GWR-LAP03 |  20130413 |              0 |  
| 283 | GWR-LAP03 |  20130413 |              2 |  
| 313 | GMSRT     |  20130623 |              1 |  
| 334 | ROW1517L  |  20130523 |              0 |  
| 335 | ROW1792L  |         0 |              0 |  
| 335 | ROW1792L  |         0 |             23 |  
| 339 | TEXCE-PC  |         0 |              0 |  
+-----+-----------+-----------+----------------+

Answer 1

我确信有更好的方法可以做到这一点，但我认为这会给你你想要的东西。只需将您的UNION查询作为子选择，然后SUM MissingPatches列。

SELECT s.id, Name, checkdate, SUM(MissingPatches) as MissingPatches

FROM

(

Select systems.sid,systems.Name,systems.checkdate ,SUM(0) as MissingPatches 
from (patches left JOIN Systems ON Systems.Sid=patches.Sid) 
where (STR_TO_DATE(systems.checkdate, '%Y%m%d') < CURDATE() - INTERVAL 14 DAY) 
Group by SYSTEMS.Sid

Union All

Select systems.sid,systems.Name,systems. checkdate ,count(approved) as MissingPatches
from (patches left JOIN Systems ON Systems.Sid=patches.Sid) 
where patches.Approved = 1 and patches.Installed = 0 and Patches.Sid = systems.Sid
group by patches.Sid having count(approved) > 0

) as x

GROUP BY s.id, Name, checkdate

带有计数的MYSQL联合查询

表1：系统

表2：补丁

CODE：

结果：

1 个答案: