There are multiple system names and multiple CPU numbers.
I need to produce a report that shows the cpuPercentageBsy for cpuNum's 0 and 1 and then an average of cpuPercentageBsy for all the other CPU numbers.
I therefore need output that looks something like this:
sysName, date, time, CPU 0 Percentage Bsy, CPU 1 Percentage Bsy, Average CPU Busy all other CPU's
I can't even get started with this one so any help would be very much appreciated
Thanks,
p.
---------- Post updated at 01:12 PM ---------- Previous update was at 12:26 PM ----------
What I've got so far:
Code:
SELECT t1.sysName, t1.date, t1.time,
(CASE WHEN t1.cpuNum = 0 THEN t1.cpuPercentageBsy end) AS cpu0percBsy,
(CASE WHEN t1.cpuNum = 1 THEN t1.cpuPercentageBsy end) AS cpu1percBsy
FROM CPU AS t1 INNER JOIN CPU AS t2
ON t1.time = t2.time AND t1.date = t2.date
WHERE t1.date = curdate()-1 AND t1.cpuNum IN (0,1)
AND t1.sysName = 'SYS1'
AND t1.time BETWEEN '01:00:00' AND '02:00:00'
GROUP BY t1.froms;
Gotta say it's a little lacking in specifics on the details.
You're using Oracle? MySQL? SQL Server? Your use of curdate() suggests, but doesn't say. What exactly is the contents of the CPU table? Does it contain activity for both CPU0 and CPU1, along with others?
Points to note: your CASE..END statements skip the fallback ELSE clause, which probably accounts for the NULL value shown. Your IN array restricts it all to CPUs 0 and 1, whereas your initial comments suggest you'd want insight to the spread across all CPU.
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