Getting Total Count for each month based on the Start and End Date

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Getting Total Count for each month based on the Start and End Date

sql1411

Ten Centuries

Points: 1390
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October 16, 2013 at 11:00 am

#284715

I've a simple TSQL query as follows
SELECT COUNT (PaxNum) as TotalPassengersCount
FROM dbo.FlightDetails
WHERE FlightDate BETWEEN '1/1/2013' and '1/31/2013';
Here, I'm getting the TotalPassengercount for the month of Jan 2013.
Now, if I change my end date to '10/15/2013', I want to get the passenger count for each month up to Oct 15.
For eg, my desired result should be
Jan - 2000
Feb - 2500
-
-
Oct (month to date up to 15) - 1000
Instead of changing the date and running it for every month manually, I wanted to know if we can do this in one single query without having to run it manually for each month.
Thanks for your help in advance

Viewing 8 posts - 1 through 7 (of 7 total)

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Luis Cazares SSC Guru Points: 183698 More actions · Answer 1

You could add the MONTH and YEAR functions or a CONVERT to group by.

SELECT RIGHT( CONVERT(char(11), FlightDate, 113), 8) Month,

COUNT (PaxNum) as TotalPassengersCount

FROM dbo.FlightDetails

WHERE FlightDate BETWEEN '1/1/2013' and '1/31/2013'

GROUP BY RIGHT( CONVERT(char(11), FlightDate, 113), 8);

PS. You can change the Month format

Luis C.
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Sean Lange SSC Guru Points: 286573 More actions · Answer 2

Assuming FlightDate is a datetime data type you could use this.

SELECT Month(FlightDate) as Month,

COUNT (PaxNum) as TotalPassengersCount

FROM dbo.FlightDetails

WHERE FlightDate BETWEEN '1/1/2013' and '10/15/2013'

GROUP BY Month(FlightDate);

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Luis Cazares SSC Guru Points: 183698 More actions · Answer 3

Assuming also that both dates will be on the same year and months won't overlap. Otherwise a year column is also necessary.;-)

Luis C.
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LutzM SSC Guru Points: 107049 More actions · Answer 4

Just as a side note:

Whenever dealing with a date type in character format, I'd prefer the ISO format 'YYYYMMDD', so '20131015' instead of '10/15/2013'

Just use SET DATEFORMAT DMY in a query window and try Sean's query again....

Lutz
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Sean Lange SSC Guru Points: 286573 More actions · Answer 5

LutzM (10/16/2013)
Just as a side note:
Whenever dealing with a date type in character format, I'd prefer the ISO format 'YYYYMMDD', so '20131015' instead of '10/15/2013'

+10000 to that.

I should have reformatted the query and stated the same but apparently I was being lazy this time. 😀

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Need help? Help us help you.

Read the article at http://www.sqlservercentral.com/articles/Best+Practices/61537/ for best practices on asking questions.

Need to split a string? Try Jeff Modens splitter http://www.sqlservercentral.com/articles/Tally+Table/72993/.

Cross Tabs and Pivots, Part 1 – Converting Rows to Columns - http://www.sqlservercentral.com/articles/T-SQL/63681/
Cross Tabs and Pivots, Part 2 - Dynamic Cross Tabs - http://www.sqlservercentral.com/articles/Crosstab/65048/
Understanding and Using APPLY (Part 1) - http://www.sqlservercentral.com/articles/APPLY/69953/
Understanding and Using APPLY (Part 2) - http://www.sqlservercentral.com/articles/APPLY/69954/

sql1411 Ten Centuries Points: 1390 More actions · Answer 6

Thanks much to all of you for your help and comments.

J Livingston SQL SSC Guru Points: 51550 More actions · Answer 7

SELECT CONVERT(VARCHAR(10), DATEADD(mm, DATEDIFF(mm, 0, FlightDate), 0), 102) AS FlightMonth,

COUNT(PaxNum) AS TotalPassengersCount

FROM FlightDetails

GROUP BY DATEADD(mm, DATEDIFF(mm, 0, FlightDate), 0)

ORDER BY DATEADD(mm, DATEDIFF(mm, 0, FlightDate), 0)

another idea 🙂

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