Question

How can you Select two columns and have each column test for it’s own condition and not the other’s ?

Let’s say I have a select that Count every records in a table. In one column I want every records from this week, and in the second one I want all record since the beginning of the year.

I have two conditions but they each apply to a specific column :

        WHERE date BETWEEN @Monday AND @SUNDAY  /* Weekly */
        WHERE date >= @JanuaryFirst             /* Annual */

But can’t just put it like this because I will only get this week’s record in both columns. I thought I could use an IFcondition but I don’t think I can simply say “If you are column A test for this, if not test for the second one”.

Answer 1

Use INNER SELECTS, like this:

select vehicule,
       (select count(*) from tablename t1 where t1.vehicule = t.vehicule and date BETWEEN @Monday AND @SUNDAY) as 'Weekly',
       (select count(*) from tablename t1 where t1.vehicule = t.vehicule and date >= @JanuaryFirst) as 'Annual'
from tablename t