Question

Okay, so these are my three tables:

USER

|--------+----------+----------|
| UserID | UserName | IsActive |
|--------+----------+----------|
|   10   |   Mike   |     1    |
|   11   |   John   |     1    |
|   12   |   Beth   |     1    |
|--------+----------+----------|

REPORT_DISTRIB (Linking Table)

|-----------+--------+----------+---------------|
| DistribID | UserID | ReportID | DistribToUser |
|-----------+--------+----------+---------------|
|     1     |   10   |    50    |       1       |
|     2     |   12   |    52    |       0       |
|     3     |   14   |    54    |       1       |
|-----------+--------+----------+---------------|

REPORT

|----------+------------+---------------|
| ReportID | ReportName | Distributable |
|----------+------------+---------------|
|    50    |   FY2010   |       1       |
|    51    |   FY2011   |       1       |
|    52    |   FY2012   |       1       |
|----------+------------+---------------|

In the problem I’m facing, I have 200 users from the USER table that are active and 10 reports from the REPORT table that are distributable. For every user I need to display the User Name, the Report Name, and whether that report should be distributed to the user, like so:

|----------+------------+---------------|
| UserName | ReportName | DistribToUser |
|----------+------------+---------------|
|   Mike   |   FY2010   |       1       |
|   Beth   |   FY2012   |       0       |
|----------+------------+---------------|

What I’m trying to achieve is a list of 2000 results (200 users x 10 reports). The problem is that the REPORT_DISTRIB linking table doesn’t have a record for every user with each report. I still feel like this should be possible… am I wrong in my thinking? Any help is greatly appreciated.

It’s rough, but this is my query so far (which returns 1790 results):

SELECT u.UserName, r.ReportName, rd.DistribToUser
FROM USER u
LEFT JOIN REPORT_DISTRIB rd on rd.UserID = u.UserID
  and rd.ReportID in (select r.ReportID from REPORT r where r.Distributable = 1)
OUTER APPLY (select r.ReportName from REPORT r where r.ReportID = rd.ReportID) r
WHERE u.IsActive = 1

Answer 1

SELECT u.UserName, r.ReportName, COALESCE(rd.DistribToUser, 0)
    FROM USER u
        CROSS JOIN REPORT r
        LEFT JOIN REPORT_DISTRIB rd
            ON u.UserID = rd.UserID
                AND r.ReportID = rd.ReportID
    WHERE u.IsActive = 1
        AND r.Distributable = 1