Need to combine hourly and daily average data in SELECT
I have a query that averages hi-resolution sensor data across an hour:
I need to also include an average line for each pen, resulting in a chart that would look something like this:
I can get the average of either chart pen using a query like this:
Unfortunately, the charting application I need to use doesn't allow multiple data sources (queries). Is there a way to get both the hourly average data and the daily average data returned from a single query?
Thank you for looking at this issue!
SELECT
DATEADD(HOUR, DATEDIFF(HOUR, 0, Sensor_Turb0.t_stamp), 0) AS t_stamp_hour
, AVG(Sensor_Turb0.mbTurb0_Turb) AS Avg_Turb
, AVG(Sensor_Flow0.mbflow0_Flow) AS Avg_Flow
FROM Sensor_Turb0
INNER JOIN Sensor_Flow0 ON Sensor_Turb0.t_stamp = Sensor_Flow0.t_stamp
WHERE (Sensor_Turb0.t_stamp > DATEADD(DAY,-1,CAST(GETDATE() AS date)))
GROUP BY DATEADD(HOUR, DATEDIFF(HOUR, 0, Sensor_Turb0.t_stamp), 0)
ORDER BY DATEADD(HOUR, DATEDIFF(HOUR, 0, Sensor_Turb0.t_stamp), 0)
I need to also include an average line for each pen, resulting in a chart that would look something like this:
I can get the average of either chart pen using a query like this:
SELECT
AVG(Sensor_Turb0.mbTurb0_Turb) AS Avg_Turb
FROM Sensor_Turb0
WHERE (Sensor_Turb0.t_stamp > DATEADD(DAY,-1,CAST(GETDATE() AS date)))
Unfortunately, the charting application I need to use doesn't allow multiple data sources (queries). Is there a way to get both the hourly average data and the daily average data returned from a single query?
Thank you for looking at this issue!
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TRUSTED BY
CREATE TABLE temp (Id Int, Hourly Numeric(14,2), Daily Numeric(14,2))
INSERT INTO temp (Id) VALUE (1)
Schedule SQL Server Job to update the values hourly:
UPDATE temp SET Hourly = (SELECT AVG(...)) WHERE Id = 1
UPDATE temp SET Daily = (SELECT AVG(...)) WHERE Id = 1
In your application use one query:
SELECT Hourly, Daily FROM temp WHERE Id = 1
Instead of Id you can use Hour, Day. In such case the table will have history like:
Day, Hour, Hourly, Daily
33, 1, 0.456 0.654
33, 2, 0.461 0.654
SELECT Hourly, Daily FROM temp WHERE (Day = 33) AND (Hour BETWEEN 7 AND 17)