我无法简明扼要地描述我需要的内容，因此感谢您对编辑标题的任何帮助！
我有 3 张桌子：
Jobs（有JobIDPK）JobsDetail（有JobIDFK和DepartmentsIDFK）Departments（有DepartmentsIDPK）
Departments将有少量记录（~10）
如果我有 10 个部门行，我需要为每条Jobs记录重复所有 10 行。不在JobsDetailJob 记录中的 DepartmentID 将在 Job 列中显示一个NULL值。一张Jobs唱片，一个典型的LEFT JOIN作品就像我想要的那样：
Select d.Department, jobs.JobIdentifier
From Departments d
LEFT JOIN (Select Distinct j.JobID, j.JobIdentifier, DepartmentID,
From Jobs j
Join JobsDetail jd on j.JobID = jd.JobID) jobs on d.DepartmentID = jobs.DepartmentID
产生这些结果：
Department JobIdentifier
310 NULL
320 NULL
430 NULL
450 NULL
460 NULL
500 NULL
530 1000
533 1000
534 1000
535 NULL
当然，当添加另一个 Jobs 记录时，我会看到：
Department JobIdentifier
310 2000
320 NULL
430 NULL
450 NULL
460 2000
500 NULL
530 1000
533 1000
534 1000
534 2000
535 NULL
我需要的是这样的：
Department JobIdentifier
310 NULL
320 NULL
430 NULL
450 NULL
460 NULL
500 NULL
530 1000
533 1000
534 1000
535 NULL
310 2000
320 NULL
430 NULL
450 NULL
460 2000
500 NULL
530 NULL
533 NULL
534 2000
535 NULL
如何实现？
以下是表格中的一些测试数据：
JobID SubPlantID JobIdentifier PartFamilyID OrderDate OrderedBy OrderQuantity DueDate SpecialInstructions PrintDate PrintedBy StartDate StartedBy ProducedQuantity ReprintNumber CompletedDate Location
-------------------- ----------- -------------------------------------------------- ------------ ----------------------- -------------------------------------------------- ------------- ----------------------- ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- ----------------------- -------------------------------------------------- ----------------------- -------------------------------------------------- ---------------- ------------- ----------------------- --------------------------------------------------
2 1 1000 1 2012-12-21 13:20:00.000 Keith 1 2012-12-28 00:00:00.000 NULL NULL 2012-12-28 00:00:00.000 NULL NULL 0 NULL NULL
3 1 2000 1 2013-01-03 00:00:00.000 Jon 10 2013-01-10 00:00:00.000 NULL NULL NULL NULL NULL NULL 0 NULL NULL
JobsDetailID JobID Operation FirstStartDate OperationQuantity OperationStatusTypeID OperationDescription DepartmentID WorkCenterID UserName
-------------------- -------------------- --------- ----------------------- ----------------- --------------------- -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- ------------ ------------ --------------------------------------------------
1 2 10 NULL 1 2 Weld 1 2 keith
2 2 20 NULL 1 3 Punch 1 1 keith
3 2 30 NULL 1 2 Form 3 5 jon
4 2 40 NULL 1 3 Paint 2 4 jon
6 2 50 NULL 1 3 Glue 2 4 jwood
9 2 60 NULL 1 2 Eat 3 5 jon
10 3 20 NULL 10 1 Punch 10 18 Jon Wrye
11 3 30 NULL 10 0 Form 15 29 Jon Wrye
12 3 40 NULL 10 0 Weld 13 24 Jon Wrye
13 3 10 NULL 10 2 Start 1 1 jwrye
14 3 50 NULL 10 0 Finish 1 2 jwrye
DepartmentID Department
------------ --------------------------------------------------
1 534
2 533
3 530
4 535
5 500
6 450
7 430
8 200
9 240
10 232
11 220
12 300
13 460
14 320
15 310