SQL Server存储过程更新错误

我有两张桌子

Funddetails

：

 FundId  Fund   Industry State    Column1
 -----------------------------------------
     1     1        2      NSW             
     2     1        2      ACT         
     3     1        2      VIC          
     4     1        2      NSW         
     5     1        2      ACT         
     6     1        2      VIC         
     7     1        2      NSW          
     8     1        2      ACT         
     9     1        2      VIC      

Industrydetail

：

IndustryId price State
-----------------------
   1         12   NSW
   2         1    Vic
   3         3    ACT

我想编写一个存储过程来更新

funddetails

表的

Column1

第1列

计算如下

funddetails.Industry * Industrydetail.price - Avg of funddetails.Industry per state

如果该值小于或等于-5，则返回50，否则返回100

这是我的存储过程：

 UPDATE FundDetails
 SET Column1 = 
        CASE 
           WHEN (funddetails.Industry * Industrydetail.price-Avg(funddetails.Industry) OVER (partition BY t2.state )) <= -5 
              THEN '50' 
              ELSE '100' 
        END
FROM FundDetails t2
INNER JOIN IndustryDetails t1 ON t1.State = t2.State 

更新基金详细信息
设置列1=
案例
当（funddetails.Industry*industrydetails.price Avg（funddetails.Industry）超过（按t2.state划分））时，您可以如下所示：

UPDATE FundDetails
SET Column1 = CASE WHEN (funddetails.Industry * t1.price- t2.MyAvg) <= -5 THEN '50' 
            ELSE '100' END
FROM 
    (SELECT fd.*, Avg(fd.Industry)  OVER (partition BY fd.state ) MyAvg FROM FundDetails fd) t2 INNER JOIN 
    IndustryDetails t1 on t1.State = t2.State 
--WHERE FundDetails.Id = t2.Id

更新基金详细信息
设置Column1=CASE WHEN（funddetails.Industry*t1.price-t2.MyAvg）修改代码如下

UPDATE FundDetails
SET Column1= CASE 
 WHEN (funddetails.Industry*Industrydetails.price-
  (select Avg(funddetails.Industry)  OVER (partition BY FundDetails.state)) 
 <= -5 THEN '50' ELSE '100' 
 END
FROM FundDetails 
INNER JOIN Industrydetails  on FundDetails.State = Industrydetails.State 

更新基金详细信息
SET Column1=大小写
何时（funddetails.Industry*Industrydetails.price）-
（选择平均值（funddetails.Industry）超过（按funddetails.state划分））
您是否尝试过将分析子句放在子查询中，并将
UPDATE
with
CASE
放在外部查询中？为什么给我-1？