Question

I’m using SQL report builder and wish to calculate the % within turnaround times

my table looks like

Name  count  within tat
jeff   1      1
jeff   1      0
jeff   1      1
jeff   1      0

i would like it to look like this.

Name  count  within tat
jeff   4     2 (50%)  

The code im using to calculate within tat is

case
when (convert(Decimal(10,2),
    (cast(datediff(minute,
        (CAST(RequestDate AS DATETIME) + CAST(RequestTime AS DATETIME)), 
    REQUEST_TESTLINES.AuthDateTime)as float)/60/24))) > 
    EXP_TAT then '1' else '0' end as [withintat]

How can I sum this column ?

Answer 1

you looking for something like that?

select name , sum(count) total, sum(within_tat)*100 /sum(count) as percent

from Table1
Group by name

LOOK DEMO SQLFIDDLE

EDIT.

OR if you want it exactly as yyou want try this

 select name , sum(count) as total, CONCAT(sum(within_tat),' ' ,'(',sum(within_tat)*100 /sum(count),  '%',')' ) as percent

from Table1
Group by name

CHECK DEMO HERE