Sql 添加case语句时，存储过程中出现错误

我有一个类似这样的程序：

SELECT

     k.HBarcode, m.make,t.Compl,
    t.plateno,t.self,t.dtime, v.vtype, l.locname,[dbo].[EDTCAL](t.TBarcode)as EDT,  t.locid,t.vtid,t.lsttic,
     c.Colname, te.UniqueName

  FROM transaction_tbl t

  left JOIN KHanger_tbl k ON t.transactID = k.transactID
  left JOIN make_tbl m ON t.mkid = m.mkid 

  left JOIN vtype_tbl v ON v.vtid = t.vtid 
  left  JOIN Location_tbl l ON t.locid = l.locid 

  left JOIN Color_tbl C ON t.colid = c.colid 
  left JOIN Terminals_tbl te ON k.tid = te.tid

 WHERE t.tbarcode = '0213'

ALTER function [dbo].[EDTCAL](@cardID VARCHAR(50)) RETURNS int
as 
begin
declare
@locid int,
@EDT int,
@minEDT int,
@buffEDT int,
@value int

select @locid= t.Locid from Transaction_tbl t where t.TBarcode=@cardID
select @EDT= l.EDT from Location_tbl l where l.Locid=@locid
select @minEDT=l.MinEDT  from Location_tbl l where l.Locid=@locid
select @buffEDT=l.BuffrEDT  from Location_tbl l where l.Locid=@locid 
if (@EDT is null) or (@EDT=0)
begin
select @value=@minEDT+@buffEDT
end 
else
begin
select @value=@EDT+@buffEDT
end
return @value
end

SELECT

     k.HBarcode, m.make,t.Compl,
    t.plateno,t.self,t.dtime, v.vtype, l.locname,case when l.edt is null or l.edt =0 then l.minEdt +l.bufferEdt else l.edt + l.bufferEdt end as EDT,  t.locid,t.vtid,t.lsttic,
     c.Colname, te.UniqueName

  FROM transaction_tbl t

  left JOIN KHanger_tbl k ON t.transactID = k.transactID
  left JOIN make_tbl m ON t.mkid = m.mkid 

  left JOIN vtype_tbl v ON v.vtid = t.vtid 
  left  JOIN Location_tbl l ON t.locid = l.locid 

  left JOIN Color_tbl C ON t.colid = c.colid 
  left JOIN Terminals_tbl te ON k.tid = te.tid

 WHERE t.tbarcode = '0213'

我的功能如下：

SELECT

     k.HBarcode, m.make,t.Compl,
    t.plateno,t.self,t.dtime, v.vtype, l.locname,[dbo].[EDTCAL](t.TBarcode)as EDT,  t.locid,t.vtid,t.lsttic,
     c.Colname, te.UniqueName

  FROM transaction_tbl t

  left JOIN KHanger_tbl k ON t.transactID = k.transactID
  left JOIN make_tbl m ON t.mkid = m.mkid 

  left JOIN vtype_tbl v ON v.vtid = t.vtid 
  left  JOIN Location_tbl l ON t.locid = l.locid 

  left JOIN Color_tbl C ON t.colid = c.colid 
  left JOIN Terminals_tbl te ON k.tid = te.tid

 WHERE t.tbarcode = '0213'

ALTER function [dbo].[EDTCAL](@cardID VARCHAR(50)) RETURNS int
as 
begin
declare
@locid int,
@EDT int,
@minEDT int,
@buffEDT int,
@value int

select @locid= t.Locid from Transaction_tbl t where t.TBarcode=@cardID
select @EDT= l.EDT from Location_tbl l where l.Locid=@locid
select @minEDT=l.MinEDT  from Location_tbl l where l.Locid=@locid
select @buffEDT=l.BuffrEDT  from Location_tbl l where l.Locid=@locid 
if (@EDT is null) or (@EDT=0)
begin
select @value=@minEDT+@buffEDT
end 
else
begin
select @value=@EDT+@buffEDT
end
return @value
end

SELECT

     k.HBarcode, m.make,t.Compl,
    t.plateno,t.self,t.dtime, v.vtype, l.locname,case when l.edt is null or l.edt =0 then l.minEdt +l.bufferEdt else l.edt + l.bufferEdt end as EDT,  t.locid,t.vtid,t.lsttic,
     c.Colname, te.UniqueName

  FROM transaction_tbl t

  left JOIN KHanger_tbl k ON t.transactID = k.transactID
  left JOIN make_tbl m ON t.mkid = m.mkid 

  left JOIN vtype_tbl v ON v.vtid = t.vtid 
  left  JOIN Location_tbl l ON t.locid = l.locid 

  left JOIN Color_tbl C ON t.colid = c.colid 
  left JOIN Terminals_tbl te ON k.tid = te.tid

 WHERE t.tbarcode = '0213'

所以我的存储过程执行时间很慢..所以我从过程中删除了我的函数，并编写了如下代码：

SELECT

     k.HBarcode, m.make,t.Compl,
    t.plateno,t.self,t.dtime, v.vtype, l.locname,[dbo].[EDTCAL](t.TBarcode)as EDT,  t.locid,t.vtid,t.lsttic,
     c.Colname, te.UniqueName

  FROM transaction_tbl t

  left JOIN KHanger_tbl k ON t.transactID = k.transactID
  left JOIN make_tbl m ON t.mkid = m.mkid 

  left JOIN vtype_tbl v ON v.vtid = t.vtid 
  left  JOIN Location_tbl l ON t.locid = l.locid 

  left JOIN Color_tbl C ON t.colid = c.colid 
  left JOIN Terminals_tbl te ON k.tid = te.tid

 WHERE t.tbarcode = '0213'

ALTER function [dbo].[EDTCAL](@cardID VARCHAR(50)) RETURNS int
as 
begin
declare
@locid int,
@EDT int,
@minEDT int,
@buffEDT int,
@value int

select @locid= t.Locid from Transaction_tbl t where t.TBarcode=@cardID
select @EDT= l.EDT from Location_tbl l where l.Locid=@locid
select @minEDT=l.MinEDT  from Location_tbl l where l.Locid=@locid
select @buffEDT=l.BuffrEDT  from Location_tbl l where l.Locid=@locid 
if (@EDT is null) or (@EDT=0)
begin
select @value=@minEDT+@buffEDT
end 
else
begin
select @value=@EDT+@buffEDT
end
return @value
end

SELECT

     k.HBarcode, m.make,t.Compl,
    t.plateno,t.self,t.dtime, v.vtype, l.locname,case when l.edt is null or l.edt =0 then l.minEdt +l.bufferEdt else l.edt + l.bufferEdt end as EDT,  t.locid,t.vtid,t.lsttic,
     c.Colname, te.UniqueName

  FROM transaction_tbl t

  left JOIN KHanger_tbl k ON t.transactID = k.transactID
  left JOIN make_tbl m ON t.mkid = m.mkid 

  left JOIN vtype_tbl v ON v.vtid = t.vtid 
  left  JOIN Location_tbl l ON t.locid = l.locid 

  left JOIN Color_tbl C ON t.colid = c.colid 
  left JOIN Terminals_tbl te ON k.tid = te.tid

 WHERE t.tbarcode = '0213'

*但是得到错误： 味精207，16级，状态1，第4行 无效的列名“bufferEdt”。 味精207，16级，状态1，第4行 无效的列名“bufferEdt”

我只添加了额外的代码

---

当l.edt为null或l.edt=0时，则l.minEdt+l.bufferEdt否则l.edt+l.bufferEdt结束为edt

执行计划中tbarcode='0213'出现在何处？它应该在那里的某个地方。使用它可能没有什么好处。一般来说，如果您想提高查询的执行时间，可以完全去掉udf，并从基于联接的case语句中获取@minEDT+@buffEDT和@value=@EDT+@buffEDT

抱歉在电话里这么做。关键是你不需要一个单独的函数。将对udf的调用替换为以下内容： 当l.edt为null或l.edt=0时，则l.minEdt+l.bufferEdt否则l.edt+l.bufferEdt结束为edt

---

关键是您的udf会对返回的每一行进行单独的选择，从而增加执行时间。您不需要它，因为字段已作为select语句的一部分返回。

sir如何将我的函数连接到特定的存储过程？在select语句中，当l.edt为null或l.edt=0时，不调用EDTCAL，然后l.minEdt+l.bufferEdt，否则l.edt+l.bufferEdt结束为edt。正如我说的，我在电话里这么做。稍后我将发布代码，但请尝试此操作。因此，添加此代码后，我不想返回任何值case语句应生成与您的返回值等效的值，因此您根本不需要函数。先生，我已将您的代码添加到存储过程中..但出现错误..我更新了我的qstation