Question

I have the following code. The 3 decimal places are being displayed but the average is wrong. Is there a way I can restructure the code to achieve the correct result?

with total_indi_days as
(
    SELECT COUNT(*) AS total, DATENAME(DW, DateLog) AS NameOfDay 
    FROM  Access 
    GROUP BY DATENAME(DW, DateLog) 
    --ORDER BY total DESC 
)
,total_overall_days as
(
    SELECT COUNT(*) as total_days FROM  Access
)
select str(((total * 100)/ total_days ), 7, 3) as average, total, total_days, NameOfDay 
from total_indi_days, total_overall_days

result…

|average | total | total_days | NameOfDay
| 2.000  |  29   |   1000     | Sun           
| 18.000 | 188   |   1000     | Mon             
| 15.000 | 159   |   1000     | Tues         
| 20.000 | 207   |   1000     | Wed             
| 19.000 | 194   |   1000     | Thur           
| 17.000 | 171   |   1000     | Fri             
| 5.000  |  52   |   1000     | Sat  

should be…

|average | total | total_days | NameOfDay
| 2.900  |  29   |   1000     | Sun           
| 18.800 | 188   |   1000     | Mon             
| 15.900 | 159   |   1000     | Tues         
| 20.700 | 207   |   1000     | Wed             
| 19.400 | 194   |   1000     | Thur           
| 17.100 | 171   |   1000     | Fri             
| 5.200  |  52   |   1000     | Sat  

I would also like to know if there is a easier way to get this result. The “with” is a bit much, considering I have the AVG built in function, which did not work for me maybe because I was doing the wrong thing.

Answer 1

Change

select str(((total * 100)/ total_days ), 7, 3) as average  to 

to

select str(((total * 100.0)/ total_days ), 7, 3) as average

This way, you don’t have integer division…