October 15, 2007 at 7:39 am
Hi all
have developed my library project counter problem when I want to get sum
book status (in , out ,lost,damage and removed) of the same title from master Book table vs details Book table in one row.Master book table link with detail table field bookID and their status field on the book details have 1=in,2=out,3=lost,4=damage,5=removed .I tried to use group by method but got sum their status of same title different rows
Please need you help
thank in advanced
October 15, 2007 at 7:49 am
Maybe this gets you started...
Select M.BookId, D.[status], count(*) as NumberOfOccurrences
from [master Book table] M
inner join [details Book table] D
on M.bookID = D.BookId
Group by M.BookId, D.Status
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October 15, 2007 at 8:07 am
thank for you answer
but I hope you
did not get me well I want to get sum of status Book i.e In book,out Book Lost book,Damage and Removed as table fields for each title book
thanks in advance
October 15, 2007 at 9:03 am
Sounds like you might be looking for a "pivot query" solution. Something like:
Select M.BookId, M.booktitle,
sum(case when d.status=1 then 1 else 0 end) as TotalIn,
sum(case when d.status=2 then 1 else 0 end) as TotalOut,
sum(case when d.status=3 then 1 else 0 end) as TotalLost,
sum(case when d.status=4 then 1 else 0 end) as TotalDamaged,
sum(case when d.status=5 then 1 else 0 end) as TotalRemoved
from [master Book table] M
inner join [details Book table] D
on M.bookID = D.BookId
Group by M.BookId, M.booktitle
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October 16, 2007 at 12:06 am
thanks a lot its work
December 13, 2015 at 12:00 am
Hello,
I have a similar problem. The difference is the number of sums returned is variable, i.e. it is determined by an input parameter.
How do I code this?
December 13, 2015 at 1:11 am
Could you post this in a new thread and post your table structure and some sample data? hard to tell without some details.
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