1

I’m trying to combine results from a count statement with results from other criteria (multiple tables), and am beating my head against a wall. My skills are not strong in this area, and getting to this point has been interesting. The last issue in this phase is that although I’m seeing the results I’m looking for, my UNION ALL isn’t combining the data.
You can see in the bottom table (RESULTS), that I'm getting multiple instances of the same system. I realize that I’m calling the same count twice, and it’s probably correctly trying to show me both counts, but all of my efforts to change that have taken me to other problems.
Eventually, I would also like to add at least two more counts from additional tables as well, but hopefully that won’t be as challenging once this is past. (I am also trying to get data for "systemid" where the count doesn't apply, I only want it to return those items specifically related to the count where the count is one or more. I've copied sample tables and code below.
Any help would be greatly appreciated!
Dave

TABLE1: SYSTEMS

+-----+-----------+-----------+----------------+  
| 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 |  
+-----+-----------+-----------+----------------+

TABLE2: PATCHES

╔═════╦══════════╦══════════╦═══════════╗ ║ sid ║ PatchID ║ Approved ║ Installed ║ ╠═════╬══════════╬══════════╬═══════════╣ ║ 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 ║ ╚═════╩══════════╩══════════╩═══════════╝</p>

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

RESULTS:

+-----+-----------+-----------+----------------+  
| 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 |  
+-----+-----------+-----------+----------------+
4

1 回答 1

0

我确信有更好的方法来做到这一点，但我认为这会给你你正在寻找的东西。只需将您的UNION查询作为子选择，然后SUM是 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
于 2013-06-24T20:27:27.057 回答