Question

I am having some real trouble with this, below is the code, I am try to get counts from two different tables then group them by date.

declare @fromdate as date
declare @todate as date
set @fromdate = CONVERT(date,GETDATE()-3,101)
set @todate = CONVERT(date,GETDATE(),101)

USE database
SELECT
    CONVERT(date,created_date,101) as OrdDate,
    col1=   (SELECT COUNT(distinct cust_id) 
        FROM table1 
        WHERE created_date BETWEEN @fromdate and @todate),
    col2=   (SELECT COUNT(distinct cust_id) 
        FROM table1 
        WHERE [status] LIKE 'P%' and created_date BETWEEN @fromdate and @todate),
    col3=   (SELECT COUNT(distinct cust_id) 
        FROM table2 
        WHERE created_date BETWEEN @fromdate and @todate),
    col4=   (SELECT COUNT(distinct cust_id) 
        FROM table2 
        WHERE created_date between @fromdate and @todate and result_error like 'FAIL%')

FROM table1
WHERE created_date BETWEEN @fromdate and @todate

GROUP BY CONVERT(date,created_date,101)
ORDER BY CONVERT(date,created_date,101)

It is counting all of the days together, I have tried adding Group by to each expression, no go. Any suggestions?

OrdDate     col1    col2    col3    col4
2011-12-19  5000    4000    3000    2000
2011-12-20  5000    4000    3000    2000
2011-12-21  5000    4000    3000    2000

What I want is something like this

OrdDate     col1    col2    col3    col4
2011-12-19  1500    1500    500     750
2011-12-20  2500    750     1000    1000
2011-12-21  1000    1750    1500    250

Answer 1

You have to generate a list of dates first, then JOIN back to that for each count.

This will remove issues with different row counts for each aggregate

SELECT
    base.TheDate AS OrdDare,
    ISNULL(T1.C1, 0) AS col1, 
    ISNULL(T2.C2, 0) AS col2, 
    ISNULL(T3.C3, 0) AS col3, 
    ISNULL(T4.C4, 0) AS col4
FROM
    ( -- UNION will also DISTINCT
     SELECT CONVERT(date,created_date,101) AS TheDate FROM table1
     WHERE created_date BETWEEN @fromdate and @todate
     UNION
     SELECT CONVERT(date,created_date,101) FROM table2
     WHERE created_date BETWEEN @fromdate and @todate
    ) base
    LEFT JOIN
    (
     SELECT CONVERT(date,created_date,101) AS TheDate, COUNT(distinct cust_id) AS C1
        FROM table1 
        WHERE created_date BETWEEN @fromdate and @todate
        GROUP BY CONVERT(date,created_date,101)
    ) T1 ON base.TheDate = T1.TheDate 
    LEFT JOIN
    (
      SELECT CONVERT(date,created_date,101) AS TheDate, COUNT(distinct cust_id) AS C2
        FROM table1 
        WHERE WHERE [status] LIKE 'P%' and created_date BETWEEN @fromdate and @todate
        GROUP BY CONVERT(date,created_date,101)
    ) T2 ON base.TheDate = T2.TheDate 
    LEFT JOIN
    (
     SELECT CONVERT(date,created_date,101) AS TheDate, COUNT(distinct cust_id) AS C3
        FROM table2
        WHERE created_date BETWEEN @fromdate and @todate
        GROUP BY CONVERT(date,created_date,101)
    ) T3 ON base.TheDate = T3.TheDate 
    LEFT JOIN
    (
     SELECT CONVERT(date,created_date,101) AS TheDate, COUNT(distinct cust_id) AS C4
        FROM table2
        WHERE created_date BETWEEN @fromdate and @todate and result_error like 'FAIL%'
        GROUP BY CONVERT(date,created_date,101)
    ) T4 ON base.TheDate = T4.TheDate 
ORDER BY
     base.TheDate;