Question

I have two table like

First table

FtID         ItemName            Days
---------------------------------------
1            Drive                10
2            Run                  5
3            Read                 21

Second Table

StID    FtID        Completed (bit)         DateTime  
-----------------------------------------------------

1        1             0                    07/11/2011
2        1             1                    08/11/2011 
3        1             1                    09/11/2011 
4        1             0                    10/11/2011 
5

I need to select from both tables and get data like you can see below

ItemName Days DaysCompleted DaysIncompleted  PercentageCompletion     DaysLeft
---------------------------------------------------------------------------------------          
Drive     10    2              2                40%                   6

Answer 1

SELECT 
      t1.ItemName,
      t1.Days,
      SUM(Cast(t2.Completed as integer))  DaysCompleted ,
      COUNT(t2.StID) -  SUM(Cast(t2.Completed as integer)) DaysIncompleted  ,
      (COUNT(t2.StID) * 100 / t1.Days))  PercentageCompletion     ,
      t1.Days - SUM(CASE WHEN DateTime > GetDate() THEN 1 ELSE 0)) DaysLeft
FROM 
     table1 t1 
     INNER JOIN table2 t2
     ON t1.ftId = t2.ftID
GROUP BY
      t1.ItemName,
      t1.Days

As JNK noted if Completed is Indeed a BIT you’ll need to cast to an integer (or use SUM/CASE as with his answer). Also I outputted Percentage Complete as 40 if you want .40 then you’ll need to cast to decimal if t1.Days is not already a decimal.