Sql 添加cte包含上一级父级的列
在视图中,我有以下代码,它运行良好并提供所需的输出Sql 添加cte包含上一级父级的列,sql,sql-server,sql-server-2008,common-table-expression,recursive-query,Sql,Sql Server,Sql Server 2008,Common Table Expression,Recursive Query,在视图中,我有以下代码,它运行良好并提供所需的输出 ;WITH ctesample AS (SELECT sjob, mjob, mjob AS DisplayMJob, groupf, 0 AS LVL FROM dbo.vw_jobcosting_wipmastersub WHERE ( gro
;WITH ctesample
AS (SELECT sjob,
mjob,
mjob AS DisplayMJob,
groupf,
0 AS LVL
FROM dbo.vw_jobcosting_wipmastersub
WHERE ( groupf = 'True' )
UNION ALL
SELECT vw_JobCosting_WIPMasterSub_1.sjob,
vw_JobCosting_WIPMasterSub_1.mjob,
CASE S.lvl
WHEN 0 THEN S.sjob
ELSE S.displaymjob
END AS DisplayMJob,
vw_JobCosting_WIPMasterSub_1.groupf,
S.lvl + 1 AS Expr1
FROM ctesample AS S
INNER JOIN dbo.vw_jobcosting_wipmastersub AS
vw_JobCosting_WIPMasterSub_1
ON S.sjob = vw_JobCosting_WIPMasterSub_1.mjob
WHERE ( vw_JobCosting_WIPMasterSub_1.groupf = 'False' ))
SELECT sjob,
CASE
WHEN displaymjob IS NULL THEN sjob
ELSE displaymjob
END AS MJob,
groupf
FROM ctesample AS cteSample_1
我需要再添加一列,为每条记录提供输出MJob(而不是sorce数据MJob)的父级
源数据的格式如下:
╔═════════════════════════╗
║ SJob,MJob,GroupF ║
╠═════════════════════════╣
║ 10001000,NULL,True ║
║ 10001001,NULL,True ║
║ 10001002,NULL,True ║
║ 20001000,10001000,True ║
║ 20001001,10001001,True ║
║ 20001002,10001001,True ║
║ 20001003,10001002,True ║
║ 30001000,20001000,False ║
║ 30001001,20001000,False ║
║ 30001002,20001001,False ║
║ 30001003,20001002,False ║
║ 30001004,20001002,False ║
║ 30001005,20001003,False ║
║ 30001006,20001003,False ║
║ 30001007,30001000,False ║
║ 30001008,30001000,False ║
║ 30001009,30001001,False ║
║ 30001010,30001002,False ║
║ 30001011,30001002,False ║
║ 30001012,30001003,False ║
║ 30001013,30001004,False ║
║ 30001014,30001005,False ║
║ 30001015,30001006,False ║
║ 30001016,30001006,False ║
╚═════════════════════════╝
我不知道如何解决它。如有建议,将不胜感激 所需输出如下:
Sjob,Mjob,OutputMJob,GroupF
10001000,NULL,NULL,TRUE
10001001,NULL,NULL,TRUE
10001002,NULL,NULL,TRUE
20001000,10001000,NULL,TRUE
20001001,10001001,NULL,TRUE
20001002,10001001,NULL,TRUE
20001003,10001002,NULL,TRUE
30001000,20001000,10001000,FALSE
30001001,20001000,10001000,FALSE
30001002,20001001,10001001,FALSE
30001003,20001002,10001001,FALSE
30001004,20001002,10001001,FALSE
30001005,20001003,10001002,FALSE
30001006,20001003,10001002,FALSE
30001007,20001000,10001000,FALSE
30001008,20001000,10001000,FALSE
30001009,20001000,10001000,FALSE
30001010,20001001,10001001,FALSE
30001011,20001001,10001001,FALSE
30001012,20001002,10001001,FALSE
30001013,20001002,10001001,FALSE
30001014,20001003,10001002,FALSE
30001015,20001003,10001002,FALSE
30001016,20001003,10001002,FALSE
这个问题我不太清楚,但据我所知,你想要这样的东西:
;WITH ctesample
AS (SELECT sjob,
mjob,
mjob AS DisplayMJob,
groupf,
0 AS LVL,
NULL outputMjob
FROM dbo.vw_jobcosting_wipmastersub
WHERE ( groupf = 'True' )
UNION ALL
SELECT vw_JobCosting_WIPMasterSub_1.sjob,
vw_JobCosting_WIPMasterSub_1.mjob,
CASE S.lvl
WHEN 0 THEN S.sjob
ELSE S.displaymjob
END AS DisplayMJob,
vw_JobCosting_WIPMasterSub_1.groupf,
S.lvl + 1 AS Expr1,
S.mjob
FROM ctesample AS S
INNER JOIN dbo.vw_jobcosting_wipmastersub AS
vw_JobCosting_WIPMasterSub_1
ON S.sjob = vw_JobCosting_WIPMasterSub_1.mjob
WHERE ( vw_JobCosting_WIPMasterSub_1.groupf = 'False' ))
SELECT sjob,
CASE
WHEN displaymjob IS NULL THEN sjob
ELSE displaymjob
END AS MJob,
groupf,
outputmjob
FROM ctesample AS cteSample_1
可以在上找到工作示例。请让我知道这是否正是您所问的,我将尝试给您一个更好的答案。在您的数据库结构中,“输出MJob的父级”是什么意思?抱歉,我不是很清楚。这接近我所需要的,但不完全。以你的例子来说,OutputMJob应该始终是MJob的父对象。因此,你能尝试添加一些细节以使其清晰吗?我在表达我需要的方面有点困难,我已经模拟了我想要的输出。我希望这能让它更清楚一点。@user2849560,在哪里模拟了它?抱歉,早早发布到。给你。