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Status: Solved
Priority: Medium
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Views: 493
Last Modified: 2012-06-22

Crosstab- sum of sums

Hi,
I’m trying to create a report in sql server which basically is a crosstab, where it calculates fep% for each age group.
The table looks something like this:
Mytable:
PANEL      AGE            PAID             ISSUES
N1      10            1            1
N1      20            1            2
N1      16            1            1
P2      23            2            3
P2      29            1            1
P2      31            0            2

The final report should look like the following:

PANEL            AGE 8-21(FEP%)      AGE 22-35 (FEP%)      TOTAL      %
N1            75            0            75      60
P2            0            50            50      40

            75            50            125

FEP% is calculated for each age group and panel :
= sum(paid)/sum(issues) * 100

for example, For panel N1 : 3/4* 100

And finally total both rows and columns to calculate the final percentage.

I’m new to sql server and could create the age groups but I don’t know how to sum the sums and further on. Could this all be done in one query or a stored procedure is a better approach. So far, the code for age groups:,
select      panel, sum(case when age between 8 and 21 then 1 else 0 end) as 'age 8-21',
      sum(case when age between 22 and 35 then 1 else 0 end) as 'age 22-35'

from       Mytable
group by panel

Can anybody help me please.

Many thanks,
Preeti

pmandair

Asked: 2004-09-15

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Microsoft SQL Server

1 Solution

LVL 10

imrancsCommented: 2004-09-15

select panel, (sum(case when age between 8 and 21 then Paid else 0 end)/sum(case when age between 8 and 21 then Issued else 0 end)) * 100 as 'age 8-21(FEP%)',
(sum(case when age between 22 and 35 then Paid else 0 end)/sum(case when age between 22 and 35 then Issued else 0 end)) * 100 as 'age 22-35(FEP%)',
(Sum(Paid)/Sum(Issued))/ 100 AS 'Total %'
from Mytable
group by panel

Imran

LVL 10

imrancsCommented: 2004-09-15

please change the column name from issued to issues or as in your table

LVL 10

imrancsCommented: 2004-09-15

you may get the divided by zero error if there is a zero value in devisor

try this code

select panel, (cast(sum(case when age between 8 and 21 then Paid else NULL end) as numeric(10,2))/cast(sum(case when age between 8 and 21 then Issues else Null end) as numeric(10,2))) * 100.0 as 'age 8-21(FEP%)',
(cast(sum(case when age between 22 and 35 then Paid else NULL end) as numeric(10,2))/cast(sum(case when age between 22 and 35 then Issues else NULL end) as numeric(10,2))) * 100.0 as 'age 22-35(FEP%)',
Cast(Sum(Paid)as numeric(10,2))/Cast(Sum(Issues)as numeric(10,2))*100.0 'Total %'
from Mytable
group by panel

Imran

LVL 10

imrancsCommented: 2004-09-15

the above code may have many zeros after the decimal point use cast them to numeric(10,2) like the following one

select panel, cast((cast(sum(case when age between 8 and 21 then Paid else NULL end) as numeric(10,2))/cast(sum(case when age between 8 and 21 then Issues else Null end) as numeric(10,2))) * 100 as numeric(10,2)) as 'age 8-21(FEP%)',
cast((cast(sum(case when age between 22 and 35 then Paid else NULL end) as numeric(10,2))/cast(sum(case when age between 22 and 35 then Issues else NULL end) as numeric(10,2))) * 100 as numeric(10,2))as 'age 22-35(FEP%)',
cast(Cast(Sum(Paid)as numeric(10,2))/Cast(Sum(Issues)as numeric(10,2))*100.0 as numeric(10,2)) as'Total %'
from Mytable
group by panel

Imran

LVL 43

Eugene ZCommented: 2004-09-15

your report:

select panel,
cast(sum(case when age between 8 and 21 then 1 else 0 end) as varchar(50)) + ' ' +

cast(
cast(
(cast(sum(case when age between 8 and 21 then Paid else NULL end) as numeric(10,2))/cast(sum(case when age between 8 and 21 then Issues else Null end) as numeric(10,2))) * 100.0
as int)
as varchar(50))
as 'age 8-21(FEP%)',

cast(sum(case when age between 22 and 35 then 1 else 0 end) as varchar(50)) + ' ' +
cast(
cast(
(cast(sum(case when age between 22 and 35 then Paid else NULL end) as numeric(10,2))/cast(sum(case when age between 22 and 35 then Issues else NULL end) as numeric(10,2))) * 100.0
as int)
as varchar(50))
as 'age 22-35(FEP%)',
cast(
Cast(Sum(Paid)as numeric(10,2))/Cast(Sum(Issues)as numeric(10,2))*100.0
as int)
'Total %'
from Mytable
group by panel

pmandairAuthor Commented: 2004-09-15

I'm sorry 'Total' and '%' are two separate columns in report. Total being the total for both the rows and columns. 60 in '%' is calcuated from (75/125)*100. The values are not aligned with the column names.

LVL 10

imrancsCommented: 2004-09-15

here is total column is added

select panel, cast((cast(sum(case when age between 8 and 21 then Paid else NULL end) as numeric(10,2))/cast(sum(case when age between 8 and 21 then Issues else Null end) as numeric(10,2))) * 100 as numeric(10,2)) as 'age 8-21(FEP%)',
cast((cast(sum(case when age between 22 and 35 then Paid else NULL end) as numeric(10,2))/cast(sum(case when age between 22 and 35 then Issues else NULL end) as numeric(10,2))) * 100 as numeric(10,2))as 'age 22-35(FEP%)',
Sum(IsNull(Paid,0) + IsNull(Issued,0)) As Total,
cast(Cast(Sum(Paid)as numeric(10,2))/Cast(Sum(Issues)as numeric(10,2))*100.0 as numeric(10,2)) as' %'
from Mytable
group by panel

Imran

pmandairAuthor Commented: 2004-09-15

Imran

You're nearly there...

LVL 10

imrancsCommented: 2004-09-15

once again chage issued to issues :o)

pmandairAuthor Commented: 2004-09-15

Could you calculate total on columns, for each age group?

LVL 10

imrancsCommented: 2004-09-15

please explain, may be with some example

LVL 10

imrancsCommented: 2004-09-15

you mean separate sum for Paid and Issues?

pmandairAuthor Commented: 2004-09-15

NO, like I calculated in the report , for each age group then total i.e.125

LVL 10

imrancsCommented: 2004-09-15

that would be a column and will repeat with each row, in your report you can place that column in the footer of the report. And that column i think is Total column that is calcualted as
Sum(IsNull(Paid,0) + IsNull(Issued,0)) As Total

BTW which reporting tool you are using, Crystal Reports ?

Imran

pmandairAuthor Commented: 2004-09-15

That's the problem, we're not using any reporting tool. We're trying to do all the calculations if we could on the sql front before exporting it to excel through VB.net where all the formatting would be done. Also, some complicated calculations the ones that can't be handled in SQl.

LVL 10

imrancsCommented: 2004-09-15

I think you have got your required output and remaining you can do int VB.NET.

If still there is any problem at any side SQL or VB.NET please ask.

Imran

pmandairAuthor Commented: 2004-09-15

Also, one last thing is it possible to return 0 in place of Null.

LVL 10

imrancsCommented: 2004-09-15

here is the revised version to convert NULLs to 0s

select panel, IsNull(cast((cast(sum(case when age between 8 and 21 then Paid else NULL end) as numeric(10,2))/cast(sum(case when age between 8 and 21 then Issues else Null end) as numeric(10,2))) * 100 as numeric(10,2)),0) as 'age 8-21(FEP%)',
IsNull(cast((cast(sum(case when age between 22 and 35 then Paid else NULL end) as numeric(10,2))/cast(sum(case when age between 22 and 35 then Issues else NULL end) as numeric(10,2))) * 100 as numeric(10,2)),0) as 'age 22-35(FEP%)',
Sum(IsNull(Paid,0) + IsNull(Issues,0)) As Total,
IsNull(cast(Cast(Sum(Paid)as numeric(10,2))/Cast(Sum(Issues)as numeric(10,2))*100.0 as numeric(10,2)),0) as' %'
from Mytable
group by panel

Imran

pmandairAuthor Commented: 2004-09-15

Thank you!

LVL 10

imrancsCommented: 2004-09-15

You are Welcome!!!

Glad if could help. :o)

Good Luck and happy reporting without reporting tool ;o)

Imran

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