美好的一天。我有一个脚本，它查看表并对列[vCheck]执行一些逻辑。逻辑无法正常工作。表A粘贴在下面。
如果条件为真，则该语句应该将该关联行设置为0.它当前将同一typeCol的所有关联行设置为0.如何对每一行进行个性化＆＃39;关于groupid的条件，以便具有vCheck的唯一值？我尝试使用游标方法，IF，而表，变量和更新，这导致了同样的问题。
表A
groupid eventid numid tagVal greaterThan greaterEqThan lessThan lessEqThan equalTo typeCol vCheck activeid actVal
28 18 9000002 0 NULL NULL NULL NULL NULL 0 1 70 0
28 18 9000001 NULL NULL NULL 105 NULL NULL 3 1 68 74.9101
28 18 9001767 NULL NULL NULL 10 NULL NULL 3 1 69 9.95535
9 19 9000002 0 NULL NULL NULL NULL NULL 0 1 70 0
9 19 9000001 NULL NULL NULL 105 NULL NULL 3 1 68 74.9101
9 19 9001767 NULL 10 NULL NULL NULL NULL 1 1 69 9.95535
10 20 9000002 0 NULL NULL NULL NULL NULL 0 1 70 0
10 20 9000001 NULL 105 NULL NULL NULL NULL 1 1 68 74.9101
10 20 9001767 NULL 10 NULL NULL NULL NULL 1 1 69 9.95535
脚本
DECLARE @nID nvarchar(50)
SET @nID = '9000001'
/****************Get all associated eventids with respect to the incoming numid**/
;WITH ss
AS (SELECT
a.groupid,
a.eventid
FROM subobjgroup a
WHERE numid = @nID)
/****************Get each member of the eventids selected above along with the tag data type, and tagval for each member.*/
,
ss2
AS (SELECT
c.*
FROM ss b
INNER JOIN subobjgroup c
ON b.eventid = c.eventid
)
/**************Check if each member in the groupid and their conditions to each eventid selected are met*/
SELECT
g.groupid,
g.eventid,
g.numid,
g.tagVal,
g.greaterThan,
g.greaterEqThan,
g.lessThan,
g.lessEqThan,
g.equalTo,
g.typeCol,
vCheck =
CASE
WHEN g.typecol = 0 THEN CASE
WHEN g.actval = g.tagval THEN 0
ELSE 1
END
WHEN g.typecol = 1 THEN CASE
WHEN g.actval > g.greaterthan THEN 0
ELSE 1
END
WHEN g.typecol = 2 THEN CASE
WHEN g.actval >= g.greatereqthan THEN 0
ELSE 1
END
WHEN g.typecol = 3 THEN CASE
WHEN g.actval < g.lessthan THEN 0
ELSE 1
END
WHEN g.typecol = 4 THEN CASE
WHEN g.actval <= g.lesseqthan THEN 0
ELSE 1
END
WHEN g.typecol = 5 THEN CASE
WHEN g.actval = g.equalto THEN 0
ELSE 1
END
ELSE 0
END,
g.activeid,
g.actVal
FROM ss2 g
ORDER BY g.eventid
结果......（请记住，最后一列actVal会不断变化。您将看到vCheck列的值不是1.请注意，所有vCheck值都使用相同的typeCol值链接，而不是唯一地检查每一行条件）
groupid eventid numid tagVal greaterThan greaterEqThan lessThan lessEqThan equalTo typeCol vCheck activeid actVal
9 19 9000001 NULL NULL NULL 105 NULL NULL 3 1 68 96.7658
9 19 9000002 0 NULL NULL NULL NULL NULL 0 1 70 1
9 19 9001767 NULL 10 NULL NULL NULL NULL 1 0 69 10.9553
10 20 9000001 NULL 105 NULL NULL NULL NULL 1 0 68 96.7658
10 20 9000002 0 NULL NULL NULL NULL NULL 0 1 70 1
10 20 9001767 NULL 10 NULL NULL NULL NULL 1 0 69 10.9553
28 18 9000001 NULL NULL NULL 105 NULL NULL 3 1 68 96.7658
28 18 9000002 0 NULL NULL NULL NULL NULL 0 1 70 1
28 18 9001767 NULL NULL NULL 10 NULL NULL 3 1 69 10.9553
期望的结果....（注意vCheck列和第1行，第4行和第7行。它们根据条件进行更改并且该行生效并设置为0或1）
groupid eventid numid tagVal greaterThan greaterEqThan lessThan lessEqThan equalTo typeCol vCheck activeid actVal
9 19 9000001 NULL NULL NULL 105 NULL NULL 3 0 68 96.7658
9 19 9000002 0 NULL NULL NULL NULL NULL 0 1 70 1
9 19 9001767 NULL 10 NULL NULL NULL NULL 1 0 69 10.9553
10 20 9000001 NULL 105 NULL NULL NULL NULL 1 1 68 96.7658
10 20 9000002 0 NULL NULL NULL NULL NULL 0 1 70 1
10 20 9001767 NULL 10 NULL NULL NULL NULL 1 0 69 10.9553
28 18 9000001 NULL NULL NULL 105 NULL NULL 3 0 68 96.7658
28 18 9000002 0 NULL NULL NULL NULL NULL 0 1 70 1
28 18 9001767 NULL NULL NULL 10 NULL NULL 3 1 69 10.9553
答案 0 :(得分：1)
我用过这个：
with subobjgroup(groupid ,eventid ,numid ,tagVal ,greaterThan ,greaterEqThan ,lessThan ,lessEqThan ,equalTo ,typeCol ,vCheck ,activeid ,actVal) as
( select 28,18,9000002,0,NULL,NULL,NULL,NULL,NULL,0,1,70,0 union all
select 28,18,9000001,NULL,NULL,NULL,105,NULL,NULL,3,1,68,74.9101 union all
select 28,18,9001767,NULL,NULL,NULL,10,NULL,NULL,3,1,69,9.95535 union all
select 9,19,9000002,0,NULL,NULL,NULL,NULL,NULL,0,1,70,0 union all
select 9,19,9000001,NULL,NULL,NULL,105,NULL,NULL,3,1,68,74.9101 union all
select 9,19,9001767,NULL,10,NULL,NULL,NULL,NULL,1,1,69,9.95535 union all
select 10,20,9000002,0,NULL,NULL,NULL,NULL,NULL,0,1,70,0 union all
select 10,20,9000001,NULL,105,NULL,NULL,NULL,NULL,1,1,68,74.9101 union all
select 10,20,9001767,NULL,10,NULL,NULL,NULL,NULL,1,1,69,9.95535),
ss AS (SELECT
a.groupid,
a.eventid
FROM subobjgroup a
WHERE numid = 9000001)
/****************Get each member of the eventids selected above along with the tag data type, and tagval for each member.*/
,
ss2
AS (SELECT
c.*
FROM ss b
INNER JOIN subobjgroup c
ON b.eventid = c.eventid
)
/**************Check if each member in the groupid and their conditions to each eventid selected are met*/
SELECT
g.groupid,
g.eventid,
g.numid,
g.tagVal,
g.greaterThan,
g.greaterEqThan,
g.lessThan,
g.lessEqThan,
g.equalTo,
g.typeCol,
vCheck =
CASE
WHEN g.typecol = 0 THEN CASE
WHEN coalesce(g.actval, 0) = coalesce(g.tagval, 0) THEN 0
ELSE 1
END
WHEN g.typecol = 1 THEN CASE
WHEN g.actval > g.greaterthan THEN 0
ELSE 1
END
WHEN g.typecol = 2 THEN CASE
WHEN g.actval >= g.greatereqthan THEN 0
ELSE 1
END
WHEN g.typecol = 3 THEN CASE
WHEN g.actval < g.lessthan THEN 0
ELSE 1
END
WHEN g.typecol = 4 THEN CASE
WHEN g.actval <= g.lesseqthan THEN 0
ELSE 1
END
WHEN g.typecol = 5 THEN CASE
WHEN coalesce(g.actval, 0) = coalesce(g.equalto, 0) THEN 0
ELSE 1
END
ELSE 0
END,
g.activeid,
g.actVal
FROM ss2 g
ORDER BY g.eventid
并根据您的数据更正结果。 vCheck仅仅因为typecol为1而未成为1，但因为数据是这样的。
groupid eventid numid tagVal greaterThan greaterEqThan lessThan lessEqThan equalTo typeCol vCheck activeid actVal
28 18 9000002 0 NULL NULL NULL NULL NULL 0 0 70 0,00000
28 18 9000001 NULL NULL NULL 105 NULL NULL 3 0 68 74,91010
28 18 9001767 NULL NULL NULL 10 NULL NULL 3 0 69 9,95535
9 19 9000002 0 NULL NULL NULL NULL NULL 0 0 70 0,00000
9 19 9000001 NULL NULL NULL 105 NULL NULL 3 0 68 74,91010
9 19 9001767 NULL 10 NULL NULL NULL NULL 1 1 69 9,95535
10 20 9000002 0 NULL NULL NULL NULL NULL 0 0 70 0,00000
10 20 9000001 NULL 105 NULL NULL NULL NULL 1 1 68 74,91010
10 20 9001767 NULL 10 NULL NULL NULL NULL 1 1 69 9,95535