Hey I am working on a project and I want to split the data from two columns to a new one
Current Values:
EndTime AvgExpected AvgNow Name
2022-12-04 07:17:00.000 83.031000 83.626571 Name1
2022-12-04 07:32:00.000 83.034428 83.546571 Name1
2022-12-04 07:47:00.000 83.021571 83.555142 Name1
2022-12-04 08:02:00.000 83.033285 83.533285 Name1
2022-12-04 08:17:00.000 83.038285 83.346571 Name1
2022-12-04 08:32:00.000 83.026857 83.346571 Name1
2022-12-04 08:47:00.000 83.037285 83.351714 Name1
2022-12-04 09:02:00.000 83.057000 83.445142 Name1
I want to merge the two columns "AvgExpected" and "AvgNow" to one Avg column
In the Name column I want to know what AVG is that because we merged the two AVG columns so the name will be "Name1" concated with the previous "AvgExpected" or "AvgNow" column with the exact data
Example of how I would like the table to look like:
EndTime Avg Name
2022-12-04 07:17:00.000 83.626571 Name1 AvgNow
2022-12-04 07:32:00.000 83.546571 Name1 AvgNow
2022-12-04 07:47:00.000 83.555142 Name1 AvgNow
2022-12-04 08:02:00.000 83.533285 Name1 AvgNow
2022-12-04 08:17:00.000 83.038285 Name1 AvgExpected
2022-12-04 08:32:00.000 83.026857 Name1 AvgExpected
2022-12-04 08:47:00.000 83.037285 Name1 AvgExpected
2022-12-04 09:02:00.000 83.057000 Name1 AvgExpected
I hope that my examples are clear
this is the current query
SELECT EndTime,avg(E_AVG) as AvgExpected,avg(Avg_Now)AvgNow,Name
FROM table1
where Name='Name1' and (EndTime between '2022-12-04 07:17' and '2022-12-04 15:17')
group by EndTime, Name
order by EndTime
I've made a small adjustment to the requirement as I think you'll want the "type of average" to be a new column.
You can generate the new records using a UNION
:
INSERT INTO table1 (EndTime, Avg, Name, AvgType)
SELECT
EndTime,
AvgExpected AS Avg,
Name,
'AvgExpected' AS AvgType
FROM
table1
UNION ALL
SELECT
EndTime,
AvgNow AS Avg,
Name,
'AvgNow' AS AvgType
FROM
table1
And then remove the old records by removing those with no AvgType:
DELETE FROM table1
WHERE AvgType IS NULL
You could add a constraint to the table to prevent NULL
in the AvgType
after this migration.
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