困扰很久的sql存储过程(转换为数据类型为 int 的列时发生语法错误)

wolf0418

CREATE PROCEDURE  GetDisplayNameByBatchAttibuteValues
(
@ListItemValue varchar(8000),
@ListDisplayName  varchar(8000) output
)
AS

begin
declare @str varchar(8000)

set @str =''
select @str = @str +',' + ListDisplayName  from ProductAttributeLookupListItems where ListItemValue in(@ListItemValue)

set  @ListDisplayName=stuff(@str,1,1,'')
print @ListDisplayName
end
GO

@ListItemValue 传递14,18,22这样的子符串
错误:
System.Data.SqlClient.SqlException: 将 varchar 值 '14,18,22' 转换为数据类型为 int 的列时发生语法错误。

请高手指教!感激涕零~

lisongfox

ListItemValue 在数据库中是什么型?

wolf0418

ListItemValue整型, @ListItemValue是varchar(8000)传递多个值过来,好像是自动会在in里面变成('14,18,22' ),这样就不合法了,应该是in(14,18,22)
如何能将那个自动的两个''号去掉,我试过用replace也不行,有什么好方法,谢谢指教

lisongfox

CREATE PROCEDURE  GetDisplayNameByBatchAttibuteValues
(
@ListItemValue varchar(8000),
@ListDisplayName  varchar(8000) output
)
AS

begin
declare @str varchar(8000)


declare @tb table(a int)
while  charindex(',',@s)>0
begin
insert  @tb values(cast(left(@s,charindex(',',@ListItemValue )-1) as int))
set @s = stuff(@ListItemValue ,1,charindex(',',@ListItemValue ),'')
end
insert  @tb values(@ListItemValue)

set @str =''
select @str = @str +',' + ListDisplayName  from ProductAttributeLookupListItems where ListItemValue in(select a from @tb)

set  @ListDisplayName=stuff(@str,1,1,'')
print @ListDisplayName
end
GO

lisongfox

用下面这个:


CREATE PROCEDURE  GetDisplayNameByBatchAttibuteValues
(
@ListItemValue varchar(8000),
@ListDisplayName  varchar(8000) output
)
AS

begin
declare @str varchar(8000)


declare @tb table(a int)
while  charindex(',',@ListItemValue )>0
begin
insert  @tb values(cast(left(@s,charindex(',',@ListItemValue )-1) as int))
set @s = stuff(@ListItemValue ,1,charindex(',',@ListItemValue ),'')
end
insert  @tb values(@ListItemValue)

set @str =''
select @str = @str +',' + ListDisplayName  from ProductAttributeLookupListItems where ListItemValue in(select a from @tb)

set  @ListDisplayName=stuff(@str,1,1,'')
print @ListDisplayName
end
GO

wolf0418

谢谢,
其中set @s未定义
是不是@str?

lisongfox

CREATE PROCEDURE  GetDisplayNameByBatchAttibuteValues
(
@ListItemValue varchar(8000),
@ListDisplayName  varchar(8000) output
)
AS

begin
declare @str varchar(8000)


declare @tb table(a int)
while  charindex(',',@ListItemValue )>0
begin
insert  @tb values(cast(left(@ListItemValue,charindex(',',@ListItemValue )-1) as int))
set @s = stuff(@ListItemValue ,1,charindex(',',@ListItemValue ),'')
end
insert  @tb values(@ListItemValue)

set @str =''
select @str = @str +',' + ListDisplayName  from ProductAttributeLookupListItems where ListItemValue in(select a from @tb)

set  @ListDisplayName=stuff(@str,1,1,'')
print @ListDisplayName
end
GO

lisongfox

不好意思,没有调式

wolf0418

应该这样是对的了
CREATE PROCEDURE  GetDisplayNameByBatchAttibuteValues
(
@ListItemValue varchar(8000),
@ListDisplayName  varchar(8000) output
)
AS

begin
declare @str varchar(8000)


declare @tb table(a int)
while  charindex(',',@ListItemValue )>0
begin
insert  @tb values(cast(left(@ListItemValue,charindex(',',@ListItemValue )-1) as int))
set @ListItemValue = stuff(@ListItemValue ,1,charindex(',',@ListItemValue ),'')
end
insert  @tb values(@ListItemValue)

set @str =''
select @str = @str +',' + ListDisplayName  from ProductAttributeLookupListItems where ListItemValue in(select a from @tb)

set  @ListDisplayName=stuff(@str,1,1,'')

end
GO

但是没有返回结果,很奇怪

wolf0418

感谢lisongfox ,问题解决。